diff --git a/library/Zend/Authentication/Adapter/Http.php b/library/Zend/Authentication/Adapter/Http.php
index 32ece7b8f01..ebc1f9be13f 100644
--- a/library/Zend/Authentication/Adapter/Http.php
+++ b/library/Zend/Authentication/Adapter/Http.php
@@ -389,10 +389,10 @@ protected function _challengeClient()
             . ', please use the public challengeClient() instead',
             E_USER_DEPRECATED
         );
-        
-    	return $this->challengeClient();
+
+        return $this->challengeClient();
     }
-    
+
     /**
      * Challenge Client
      *