diff --git a/src/AbstractObject.h b/src/AbstractObject.h
index cbb75373e..befdbced6 100644
--- a/src/AbstractObject.h
+++ b/src/AbstractObject.h
@@ -53,7 +53,7 @@ class MAGNUM_EXPORT AbstractObject {
          *
          * The result is cached, repeated queries don't result in repeated
          * OpenGL calls. If @extension{KHR,debug} desktop or ES extension is
-         * not available, returns `0`. Note that @extension{EXT,debug_label}
+         * not available, returns `0`. Note that @extension2{EXT,debug_label}
          * has no such limit.
          * @see @ref AbstractQuery::setLabel(), @ref AbstractShaderProgram::setLabel(),
          *      @ref AbstractTexture::setLabel(), @ref Buffer::setLabel(),
diff --git a/src/AbstractShaderProgram.h b/src/AbstractShaderProgram.h
index 570566380..7917e1f4b 100644
--- a/src/AbstractShaderProgram.h
+++ b/src/AbstractShaderProgram.h
@@ -513,10 +513,10 @@ class MAGNUM_EXPORT AbstractShaderProgram: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} with @def_gl{PROGRAM} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{PROGRAM_OBJECT_EXT}
          */
         std::string label() const;
@@ -526,10 +526,10 @@ class MAGNUM_EXPORT AbstractShaderProgram: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with
-         *      @def_gl{PROGRAM} or @fn_gl_extension{LabelObject,EXT,object_label}
+         *      @def_gl{PROGRAM} or @fn_gl_extension2{LabelObject,EXT,debug_label}
          *      with @def_gl{PROGRAM_OBJECT_EXT}
          */
         AbstractShaderProgram& setLabel(const std::string& label);
diff --git a/src/AbstractTexture.h b/src/AbstractTexture.h
index 70c74f6d2..495aeef00 100644
--- a/src/AbstractTexture.h
+++ b/src/AbstractTexture.h
@@ -171,10 +171,10 @@ class MAGNUM_EXPORT AbstractTexture: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{TEXTURE}
          */
         std::string label() const;
@@ -184,10 +184,10 @@ class MAGNUM_EXPORT AbstractTexture: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} or
-         *      @fn_gl_extension{LabelObject,EXT,object_label} with
+         *      @fn_gl_extension2{LabelObject,EXT,debug_label} with
          *      @def_gl{TEXTURE}
          */
         AbstractTexture& setLabel(const std::string& label);
diff --git a/src/Buffer.h b/src/Buffer.h
index 173fbe2a5..456aba154 100644
--- a/src/Buffer.h
+++ b/src/Buffer.h
@@ -553,10 +553,10 @@ class MAGNUM_EXPORT Buffer: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} with @def_gl{BUFFER} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{BUFFER_OBJECT_EXT}
          */
         std::string label() const;
@@ -566,11 +566,11 @@ class MAGNUM_EXPORT Buffer: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
-         * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with
-         *      @def_gl{BUFFER} or @fn_gl_extension{LabelObject,EXT,object_label}
-         *      with @def_gl{BUFFER_OBJECT_EXT}
+         * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with @def_gl{BUFFER}
+         *      or @fn_gl_extension2{LabelObject,EXT,debug_label} with
+         *      @def_gl{BUFFER_OBJECT_EXT}
          */
         Buffer& setLabel(const std::string& label);
 
diff --git a/src/Framebuffer.h b/src/Framebuffer.h
index af3c74c48..6abf5f870 100644
--- a/src/Framebuffer.h
+++ b/src/Framebuffer.h
@@ -309,10 +309,10 @@ class MAGNUM_EXPORT Framebuffer: public AbstractFramebuffer, public AbstractObje
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{FRAMEBUFFER}
          */
         std::string label() const;
@@ -322,10 +322,10 @@ class MAGNUM_EXPORT Framebuffer: public AbstractFramebuffer, public AbstractObje
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} or
-         *      @fn_gl_extension{LabelObject,EXT,object_label} with
+         *      @fn_gl_extension2{LabelObject,EXT,debug_label} with
          *      @def_gl{FRAMEBUFFER}
          */
         Framebuffer& setLabel(const std::string& label);
diff --git a/src/Mesh.h b/src/Mesh.h
index a76478a1c..6d41aba32 100644
--- a/src/Mesh.h
+++ b/src/Mesh.h
@@ -420,10 +420,10 @@ class MAGNUM_EXPORT Mesh: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} with @def_gl{VERTEX_ARRAY} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{VERTEX_ARRAY_OBJECT_EXT}
          */
         std::string label() const;
@@ -433,10 +433,10 @@ class MAGNUM_EXPORT Mesh: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with
-         *      @def_gl{VERTEX_ARRAY} or @fn_gl_extension{LabelObject,EXT,object_label}
+         *      @def_gl{VERTEX_ARRAY} or @fn_gl_extension2{LabelObject,EXT,debug_label}
          *      with @def_gl{VERTEX_ARRAY_OBJECT_EXT}
          */
         Mesh& setLabel(const std::string& label);
diff --git a/src/Query.h b/src/Query.h
index 12922bc65..8ac079f13 100644
--- a/src/Query.h
+++ b/src/Query.h
@@ -53,10 +53,10 @@ class MAGNUM_EXPORT AbstractQuery: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} with @def_gl{QUERY} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{QUERY_OBJECT_EXT}
          */
         std::string label() const;
@@ -66,10 +66,10 @@ class MAGNUM_EXPORT AbstractQuery: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with
-         *      @def_gl{QUERY} or @fn_gl_extension{LabelObject,EXT,object_label}
+         *      @def_gl{QUERY} or @fn_gl_extension2{LabelObject,EXT,debug_label}
          *      with @def_gl{QUERY_OBJECT_EXT}
          */
         AbstractQuery& setLabel(const std::string& label);
diff --git a/src/Renderbuffer.h b/src/Renderbuffer.h
index 2f1faf58d..a97ed7c91 100644
--- a/src/Renderbuffer.h
+++ b/src/Renderbuffer.h
@@ -107,10 +107,10 @@ class MAGNUM_EXPORT Renderbuffer: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{RENDERBUFFER}
          */
         std::string label() const;
@@ -120,10 +120,10 @@ class MAGNUM_EXPORT Renderbuffer: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} or
-         *      @fn_gl_extension{LabelObject,EXT,object_label} with
+         *      @fn_gl_extension2{LabelObject,EXT,debug_label} with
          *      @def_gl{RENDERBUFFER}
          */
         Renderbuffer& setLabel(const std::string& label);
diff --git a/src/Shader.h b/src/Shader.h
index 9d20c0c81..e4a663673 100644
--- a/src/Shader.h
+++ b/src/Shader.h
@@ -461,10 +461,10 @@ class MAGNUM_EXPORT Shader: public AbstractObject {
          *
          * The result is *not* cached, repeated queries will result in repeated
          * OpenGL calls. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function returns empty string.
          * @see @fn_gl{GetObjectLabel} with @def_gl{SHADER} or
-         *      @fn_gl_extension{GetObjectLabel,EXT,object_label} with
+         *      @fn_gl_extension2{GetObjectLabel,EXT,debug_label} with
          *      @def_gl{SHADER_OBJECT_EXT}
          */
         std::string label() const;
@@ -474,10 +474,10 @@ class MAGNUM_EXPORT Shader: public AbstractObject {
          * @return Reference to self (for method chaining)
          *
          * Default is empty string. If neither @extension{KHR,debug} nor
-         * @extension{EXT,debug_label} desktop or ES extension is available,
+         * @extension2{EXT,debug_label} desktop or ES extension is available,
          * this function does nothing.
          * @see @ref maxLabelLength(), @fn_gl{ObjectLabel} with
-         *      @def_gl{SHADER} or @fn_gl_extension{LabelObject,EXT,object_label}
+         *      @def_gl{SHADER} or @fn_gl_extension2{LabelObject,EXT,debug_label}
          *      with @def_gl{SHADER_OBJECT_EXT}
          */
         Shader& setLabel(const std::string& label);