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-rw-r--r--gtk/gtkruler.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gtk/gtkruler.c b/gtk/gtkruler.c
index dc5d841db..5876ba9fa 100644
--- a/gtk/gtkruler.c
+++ b/gtk/gtkruler.c
@@ -197,6 +197,7 @@ gtk_ruler_unrealize (GtkWidget *widget)
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
gtk_style_detach (widget->style);
+ gdk_window_set_user_data (widget->window, NULL);
gdk_window_destroy (widget->window);
widget->window = NULL;