diff -up gtk-nodoka-engine-0.6/src/GTKEngine/support.c.gimp-crash gtk-nodoka-engine-0.6/src/GTKEngine/support.c
--- gtk-nodoka-engine-0.6/src/GTKEngine/support.c.gimp-crash	2007-08-19 13:14:54.000000000 +0200
+++ gtk-nodoka-engine-0.6/src/GTKEngine/support.c	2007-10-29 12:17:12.000000000 +0100
@@ -279,7 +279,7 @@ nodoka_option_menu_get_props (GtkWidget 
 	if (tmp_spacing)
 	{
 		*indicator_spacing = *tmp_spacing;
-		g_free (tmp_spacing);
+		gtk_border_free (tmp_spacing);
 	}
 	else
 		*indicator_spacing = default_option_indicator_spacing;