diff --git a/classes/cache/CacheHandler.class.php b/classes/cache/CacheHandler.class.php
index 515a57284..66ad0151f 100644
--- a/classes/cache/CacheHandler.class.php
+++ b/classes/cache/CacheHandler.class.php
@@ -148,7 +148,7 @@ class CacheHandler extends Handler
 	 */
 	public function getGroupKey($keyGroupName, $key)
 	{
-		return Rhymix\Framework\Cache::getRealKey($keyGroupName . ':' . $key, false);
+		return $keyGroupName . ':' . $key;
 	}
 
 	/**
diff --git a/common/framework/cache.php b/common/framework/cache.php
index 54683bf7f..955c8e157 100644
--- a/common/framework/cache.php
+++ b/common/framework/cache.php
@@ -298,16 +298,15 @@ class Cache
 	 * Get the actual key used by Rhymix.
 	 * 
 	 * @param string $key
-	 * @param bool $add_prefix (optional)
 	 * @return string
 	 */
-	public static function getRealKey($key, $add_prefix = true)
+	public static function getRealKey($key)
 	{
 		if (preg_match('/^([^:]+):(.+)$/i', $key, $matches))
 		{
 			$key = $matches[1] . '#' . self::getGroupVersion($matches[1]) . ':' . $matches[2];
 		}
 		
-		return ($add_prefix ? self::$_prefix : '') . $key;
+		return self::$_prefix . $key;
 	}
 }