diff -upr mate-control-center/font-viewer/font-model.c mate-control-center-test/font-viewer/font-model.c

--- mate-control-center/font-viewer/font-model.c	2015-08-30 16:24:57.640773938 +0200

+++ mate-control-center-test/font-viewer/font-model.c	2015-08-30 16:17:02.562759000 +0200

@@ -542,7 +542,7 @@ get_fallback_icon (void)

         return NULL;

     pix = gtk_icon_info_load_icon (icon_info, NULL);

-    gtk_icon_info_free (icon_info);

+    g_object_unref (icon_info);

     return pix;

 }