diff --git a/client/blocks/payment-request/payment-request-express.js b/client/blocks/payment-request/payment-request-express.js
index f0a1286fd..39252558a 100644
--- a/client/blocks/payment-request/payment-request-express.js
+++ b/client/blocks/payment-request/payment-request-express.js
@@ -81,7 +81,6 @@ const PaymentRequestExpressComponent = ( {
 	// If we are on the checkout block, we receive button attributes which overwrite the extension specific settings
 	if ( typeof buttonAttributes !== 'undefined' ) {
 		height = buttonAttributes.height || height;
-		theme = buttonAttributes?.darkMode ? 'light' : 'dark';
 	}
 
 	const paymentRequestButtonStyle = {