diff --git a/lib/CleantalkSP/SpbctWP/Scanner/Heuristic/Controller.php b/lib/CleantalkSP/SpbctWP/Scanner/Heuristic/Controller.php
index 227dbd687..9e0230878 100644
--- a/lib/CleantalkSP/SpbctWP/Scanner/Heuristic/Controller.php
+++ b/lib/CleantalkSP/SpbctWP/Scanner/Heuristic/Controller.php
@@ -520,6 +520,10 @@ public function getVariablesBad()
 
     private function checkingSpecialDecryptedToken(DataStructures\Token $token)
     {
+        if (!$token->existsTag('glued')) {
+            return false;
+        }
+
         return $token->type === 'T_CONSTANT_ENCAPSED_STRING' &&
                is_callable(trim((string)$token->value, '\'')) &&
                in_array(trim((string)$token->value, '\''), $this->dangerous_decoded_values, true);