diff --git a/gdk/gdkglcontext.c b/gdk/gdkglcontext.c
index f822fa876e..c79dca0d95 100644
--- a/gdk/gdkglcontext.c
+++ b/gdk/gdkglcontext.c
@@ -154,6 +154,7 @@ gdk_gl_context_finalize (GObject *gobject)
   GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
 
   g_clear_pointer (&priv->paint_data, g_free);
+  G_OBJECT_CLASS (gdk_gl_context_parent_class)->finalize (gobject);
 }
 
 static void