diff --git a/lib/external/pear/PEAR.php b/lib/external/pear/PEAR.php
index 9c5293b4d..496296568 100644
--- a/lib/external/pear/PEAR.php
+++ b/lib/external/pear/PEAR.php
@@ -147,7 +147,7 @@ public static function __callStatic($method, $arguments)
             );
         }
         return call_user_func_array(
-            array(get_class(), '_' . $method),
+            array(__CLASS__, '_' . $method),
             array_merge(array(null), $arguments)
         );
     }
@@ -663,7 +663,7 @@ public function __call($method, $arguments)
             );
         }
         return call_user_func_array(
-            array(get_class(), '_' . $method),
+            array(__CLASS__, '_' . $method),
             array_merge(array($this), $arguments)
         );
     }