diff --git a/trustify/client/payment_challenge.py b/trustify/client/payment_challenge.py
index fc6171a68..3582f131c 100644
--- a/trustify/client/payment_challenge.py
+++ b/trustify/client/payment_challenge.py
@@ -31,7 +31,7 @@ class Payment_Challenge(Challenge):
 
     def get_display_string(self):
         if self.times_performed == 0:
-            return "You are buying " + formatted_reasons() + " You will need to visit " + self.url + " to submit your payment\nPlease press enter once your payment has been submitted"
+            return "You are buying " + self.formatted_reasons() + " You will need to visit " + self.url + " to submit your payment\nPlease press enter once your payment has been submitted"
 
         # The user has tried at least once... display a different message
         else: