diff --git a/imageinfo_cache.install b/imageinfo_cache.install
index 91de685..6d2bca6 100755
--- a/imageinfo_cache.install
+++ b/imageinfo_cache.install
@@ -80,7 +80,9 @@ function imageinfo_cache_update_6200() {
   $ret = array();
 
   // Flush menu cache.
-  menu_rebuild();
+  if (menu_rebuild()) {
+    $ret[] = array('success' => TRUE, 'query' => 'Menu cache rebuilt.');
+  }
 
   return $ret;
 }