1 files changed, 7 insertions, 0 deletions
diff --git a/epirts.js b/epirts.js
index 9a538af..ad3044f 100644
--- a/epirts.js
+++ b/epirts.js
@@ -84,6 +84,13 @@ var Stripe = Epirts = (function() {
 		};
 
 		pub.validateCVC = function(cvc) {
+			cvc += '';
+			if (cvc.match(/\D/)) {
+				return false;
+			} else if (cvc.length < 3 || cvc.length > 4) {
+				return false;
+			}
+			return true;
 		};
 
 		pub.cardType = function(number) {