diff --git a/doc/python/conf.py b/doc/python/conf.py
index 1fb217e..8b9140c 100644
--- a/doc/python/conf.py
+++ b/doc/python/conf.py
@@ -68,20 +68,24 @@ magnum.__annotations__ = {
     'TARGET_WEBGL': bool,
     'TARGET_VK': bool
 }
-magnum.gl.__annotations__ = {}
-magnum.gl.__annotations__['default_framebuffer'] = magnum.gl.DefaultFramebuffer
-magnum.shaders.VertexColor2D.__annotations__ = {}
-magnum.shaders.VertexColor2D.__annotations__['POSITION'] = magnum.gl.Attribute
-magnum.shaders.VertexColor2D.__annotations__['COLOR3'] = magnum.gl.Attribute
-magnum.shaders.VertexColor2D.__annotations__['COLOR4'] = magnum.gl.Attribute
-magnum.shaders.VertexColor3D.__annotations__ = {}
-magnum.shaders.VertexColor3D.__annotations__['POSITION'] = magnum.gl.Attribute
-magnum.shaders.VertexColor3D.__annotations__['COLOR3'] = magnum.gl.Attribute
-magnum.shaders.VertexColor3D.__annotations__['COLOR4'] = magnum.gl.Attribute
-magnum.shaders.Phong.__annotations__ = {}
-magnum.shaders.Phong.__annotations__['POSITION'] = magnum.gl.Attribute
-magnum.shaders.Phong.__annotations__['TEXTURE_COORDINATES'] = magnum.gl.Attribute
-magnum.shaders.Phong.__annotations__['NORMAL'] = magnum.gl.Attribute
+magnum.gl.__annotations__ = {
+    'default_framebuffer': magnum.gl.DefaultFramebuffer
+}
+magnum.shaders.VertexColor2D.__annotations__ = {
+    'POSITION': magnum.gl.Attribute,
+    'COLOR3': magnum.gl.Attribute,
+    'COLOR4': magnum.gl.Attribute
+}
+magnum.shaders.VertexColor3D.__annotations__ = {
+    'POSITION': magnum.gl.Attribute,
+    'COLOR3': magnum.gl.Attribute,
+    'COLOR4': magnum.gl.Attribute
+}
+magnum.shaders.Phong.__annotations__ = {
+    'POSITION': magnum.gl.Attribute,
+    'NORMAL': magnum.gl.Attribute,
+    'TEXTURE_COORDINATES': magnum.gl.Attribute
+}
 
 PROJECT_TITLE = 'Magnum'
 PROJECT_SUBTITLE = 'Python docs'
diff --git a/doc/python/magnum.shaders.rst b/doc/python/magnum.shaders.rst
index c4e8c6d..02270b3 100644
--- a/doc/python/magnum.shaders.rst
+++ b/doc/python/magnum.shaders.rst
@@ -23,20 +23,17 @@
     DEALINGS IN THE SOFTWARE.
 ..
 
-.. py:data:: magnum.shaders.VertexColor2D.POSITION
-    :summary: Two-component vertex position
-
-.. py:data:: magnum.shaders.VertexColor3D.POSITION
-    :summary: Three-component vertex position
-
-.. py:data:: magnum.shaders.VertexColor2D.COLOR3
-    :summary: Three-component vertex color
-
-.. py:data:: magnum.shaders.VertexColor3D.COLOR3
-    :summary: Three-component vertex color
-
-.. py:data:: magnum.shaders.VertexColor2D.COLOR4
-    :summary: Four-component vertex color
-
-.. py:data:: magnum.shaders.VertexColor3D.COLOR4
-    :summary: Four-component vertex color
+.. py:class:: magnum.shaders.VertexColor2D
+    :data POSITION: Vertex position
+    :data COLOR3: Three-component vertex color
+    :data COLOR4: Four-component vertex color
+
+.. py:class:: magnum.shaders.VertexColor3D
+    :data POSITION: Vertex position
+    :data COLOR3: Three-component vertex color
+    :data COLOR4: Four-component vertex color
+
+.. py:class:: magnum.shaders.Phong
+    :data POSITION: Vertex position
+    :data NORMAL: Normal direction
+    :data TEXTURE_COORDINATES: 2D texture coordinates