diff --git a/docs/reference/gdk/gdk3-sections.txt b/docs/reference/gdk/gdk3-sections.txt
index 0f50dc48e2..f4b7e32999 100644
--- a/docs/reference/gdk/gdk3-sections.txt
+++ b/docs/reference/gdk/gdk3-sections.txt
@@ -514,7 +514,7 @@ GDK_TYPE_WM_FUNCTION
 
 <SUBSECTION Private>
 gdk_window_get_type
-gdk_drawable_get_type
+gdk_window_window_class_get_type
 GdkWindowObject
 GdkWindowClass
 GdkWindowImpl