diff --git a/system/core/Loader.php b/system/core/Loader.php
index 21cb32eb930..cdad814b860 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -361,7 +361,7 @@ public function controller_output(&$out, $route, $name = NULL, $call = TRUE)
 
 			// Include source and instantiate object
 			// The Router is responsible for providing a valid path in the route stack
-			include($path.'controllers/'.$subdir.strtolower($class).'.php');
+			include($path.'controllers/'.(!empty($subdir)?$subdir.'/':'').strtolower($class).'.php');
 			$classnm = ucfirst($class);
 			$this->CI->$name = new $classnm();
 
@@ -1504,4 +1504,4 @@ protected function _ci_object_to_array($object)
 }
 
 /* End of file Loader.php */
-/* Location: ./system/core/Loader.php */
\ No newline at end of file
+/* Location: ./system/core/Loader.php */