diff --git a/Model/Payment.php b/Model/Payment.php
index e9b0298..d16ea88 100644
--- a/Model/Payment.php
+++ b/Model/Payment.php
@@ -196,7 +196,7 @@ public function canVoid()
      */
     public function canUseInternal()
     {
-        return true;
+        return false;
     }
 
     /**