diff --git a/lib/fake_braintree/credit_card.rb b/lib/fake_braintree/credit_card.rb
index 0f96524..879a114 100644
--- a/lib/fake_braintree/credit_card.rb
+++ b/lib/fake_braintree/credit_card.rb
@@ -31,12 +31,10 @@ def response_for_updated_card(credit_card)
     end
 
     def credit_card_exists_in_registry?
-      token = credit_card['token']
       FakeBraintree.registry.credit_cards.key?(token)
     end
 
     def credit_card_from_registry
-      token = credit_card['token']
       FakeBraintree.registry.credit_cards[token]
     end
 
@@ -71,5 +69,9 @@ def set_expiration_month_and_year
         @credit_card["expiration_year"] = expiration_year
       end
     end
+
+    def token
+      credit_card['token']
+    end
   end
 end