diff --git a/classes/utils.php b/classes/utils.php
index 8e63d5d..715fddd 100644
--- a/classes/utils.php
+++ b/classes/utils.php
@@ -40,10 +40,8 @@ class utils {
      */
     public static function process_json_response($response, array $expectedstructure = array()) {
         $backtrace = debug_backtrace(0);
-        $callingclass = (isset($backtrace[1]['class'])) ? $backtrace[1]['class'] : '?';
-        $callingfunc = (isset($backtrace[1]['function'])) ? $backtrace[1]['function'] : '?';
         $callingline = (isset($backtrace[0]['line'])) ? $backtrace[0]['line'] : '?';
-        $caller = $callingclass.'::'.$callingfunc.':'.$callingline;
+        $caller = __METHOD__ . ':' . $callingline;
 
         $result = @json_decode($response, true);
         if (empty($result) || !is_array($result)) {