--- tumbler-0.1.25.orig/tumbler/tumbler-util.c
+++ tumbler-0.1.25/tumbler/tumbler-util.c
@@ -43,10 +43,13 @@ tumbler_util_get_supported_uri_schemes (
   vfs = g_vfs_get_default ();
   vfs_schemes = g_vfs_get_supported_uri_schemes (vfs);
 
-  /* search for the "file" scheme */
-  for (n = 0; !file_scheme_found && vfs_schemes[n] != NULL; ++n)
-    if (g_strcmp0 (vfs_schemes[n], "file") == 0)
-      file_scheme_found = TRUE;
+  if (vfs_schemes)
+    {
+      /* search for the "file" scheme */
+      for (n = 0; !file_scheme_found && vfs_schemes[n] != NULL; ++n)
+        if (g_strcmp0 (vfs_schemes[n], "file") == 0)
+          file_scheme_found = TRUE;
+    }
 
   /* check if the "file" scheme is included */
   if (file_scheme_found)