diff --git a/paypal/js/frontend.js b/paypal/js/frontend.js
index 55b21aa74d..9296a5c032 100644
--- a/paypal/js/frontend.js
+++ b/paypal/js/frontend.js
@@ -1454,6 +1454,12 @@
 
 		thisForm.append( paymentSourceInput );
 
+		// If using the PayPal buttons to submit, there will not be a submitEvent.
+		if ( ! submitEvent ) {
+			submitEvent = new Event( 'submit', { cancelable: true, bubbles: true } );
+			submitEvent.target = thisForm;
+		}
+
 		frmFrontForm.submitFormManual( submitEvent, thisForm );
 	}