From bb307a55d347c34ab51144c75721860e13659ecb Mon Sep 17 00:00:00 2001
From: Steve Klebanoff <steve.klebanoff@gmail.com>
Date: Fri, 26 Oct 2018 19:23:42 -0700
Subject: questionmark syntax instead of '| undefined'

---
 packages/instant/src/components/buy_button.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'packages')

diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index 8b2e0e1f6..86c55dbf9 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -19,7 +19,7 @@ export interface BuyButtonProps {
     onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => void;
     onBuySuccess: (buyQuote: BuyQuote, txHash: string) => void;
     onBuyFailure: (buyQuote: BuyQuote, txHash: string) => void;
-    validateWalletBeforeBuy: (buyQuote: BuyQuote, takerAddress: string | undefined) => Promise<boolean>;
+    validateWalletBeforeBuy: (buyQuote: BuyQuote, takerAddress?: string) => Promise<boolean>;
 }
 
 export class BuyButton extends React.Component<BuyButtonProps> {
-- 
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