diff --git a/src/Pipedrive.php b/src/Pipedrive.php
index dc28e93..0342d6a 100644
--- a/src/Pipedrive.php
+++ b/src/Pipedrive.php
@@ -408,7 +408,7 @@ public function __get($name)
      */
     public function __call($name, $arguments)
     {
-        if (! in_array($name, get_class_methods(get_class()))) {
+        if (! in_array($name, get_class_methods(get_class($this)))) {
             return $this->{$name};
         }
     }