diff --git a/ios/RCTBraintree/RCTBraintree.m b/ios/RCTBraintree/RCTBraintree.m
index 94a0afd9..ef586139 100644
--- a/ios/RCTBraintree/RCTBraintree.m
+++ b/ios/RCTBraintree/RCTBraintree.m
@@ -129,6 +129,7 @@ - (instancetype)init
 {
     BTCardClient *cardClient = [[BTCardClient alloc] initWithAPIClient: self.braintreeClient];
     BTCard *card = [[BTCard alloc] initWithNumber:cardNumber expirationMonth:expirationMonth expirationYear:expirationYear cvv:cvv];
+    card.shouldValidate = YES;
 
     [cardClient tokenizeCard:card
                   completion:^(BTCardNonce *tokenizedCard, NSError *error) {