diff --git a/includes/common.inc b/includes/common.inc
index 3910364..0a4b4cd 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -5556,18 +5556,13 @@ function drupal_system_listing($mask, $directory, $key = 'name', $min_depth = 1)
   // profile always has precedence.
   $profiles[] = $profile;
   foreach ($profiles as $profile) {
-    if (file_exists("profiles/$profile/$directory")) {
-      $searchdir[] = "profiles/$profile/$directory";
-    }
+    $searchdir[] = "profiles/$profile/$directory";
   }
 
-  if (file_exists("sites/all/$directory")) {
-    $searchdir[] = "sites/all/$directory";
-  }
+  $searchdir[] = "sites/all/$directory";
+  $searchdir[] = "$config/$directory";
 
-  if (file_exists("$config/$directory")) {
-    $searchdir[] = "$config/$directory";
-  }
+  $searchdir = array_filter($searchdir, 'file_exists');
 
   // Get current list of items.
   if (!function_exists('file_scan_directory')) {