diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGL.h b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
index f310eb635..738a58b6c 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGL.h
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
@@ -14,7 +14,7 @@
 #error Attempt to include auto-generated header after including gl3ext.h
 #endif
 #if defined(__gl2platform_h_) || defined(__gl3platform_h_)
-#error Attempt to include auto-generated header after including gl2platform.h
+#error Attempt to include auto-generated header after including gl3platform.h
 #endif
 
 #define __gl_h_
diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGL.h.template b/src/MagnumExternal/OpenGL/GLES3/flextGL.h.template
index 3c49a3e78..25e6139de 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGL.h.template
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGL.h.template
@@ -15,7 +15,7 @@
 #error Attempt to include auto-generated header after including gl3ext.h
 #endif
 #if defined(__gl2platform_h_) || defined(__gl3platform_h_)
-#error Attempt to include auto-generated header after including gl2platform.h
+#error Attempt to include auto-generated header after including gl3platform.h
 #endif
 
 #define __gl_h_