1 files changed, 1 insertions, 1 deletions
diff --git a/gdk/gdk.h b/gdk/gdk.h
index 462d74940e..bbc1967dfc 100644
--- a/gdk/gdk.h
+++ b/gdk/gdk.h
@@ -153,7 +153,7 @@ void     gdk_rectangle_union     (GdkRectangle *src1,
 				  GdkRectangle *src2,
 				  GdkRectangle *dest);
 
-GType gdk_rectangle_get_type (void);
+GType gdk_rectangle_get_type (void) G_GNUC_CONST;
 
 #define GDK_TYPE_RECTANGLE (gdk_rectangle_get_type ())