diff --git a/system/core/Lang.php b/system/core/Lang.php
index ae0a4d6..92772ac 100644
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -80,7 +80,7 @@
 
 		if ($add_suffix === TRUE)
 		{
-			$langfile = str_replace('_lang', '', $langfile).'_lang';
+			$langfile = preg_replace('/_lang$/', '', $langfile).'_lang';
 		}
 
 		$langfile .= '.php';