diff --git a/payeezy_python/example/payeezy/api_methods.py b/payeezy_python/example/payeezy/api_methods.py
index f691baf..1a1e0d2 100644
--- a/payeezy_python/example/payeezy/api_methods.py
+++ b/payeezy_python/example/payeezy/api_methods.py
@@ -95,7 +95,7 @@ def makePayload(self, amount=None, currency_code=None, card_type=None, cardholde
 		if description is None:
 			description = transactionType+'transaction for amount: '+amount
 
-		if (transactionType == ('authorize' or 'purchase')): 
+		if transactionType in ['authorize', 'purchase']: 
 
 			if card_number is None:
 				raise ValueError, 'card number cannot be nil'