diff --git a/modules/memberships/memberships.js b/modules/memberships/memberships.js
index 04e7ed52b7846..c5e2d6b35477d 100644
--- a/modules/memberships/memberships.js
+++ b/modules/memberships/memberships.js
@@ -20,7 +20,7 @@ var JetpackMemberships = {
 		var wrapper = jQuery( '.' + cssClass );
 		wrapper.find( '.jetpack-memberships_purchase_button' ).click( function() {
 			JetpackMemberships.success = function( data ) {
-				wrapper.append( "<div class='jetpack-memberships_success'>" +
+				wrapper.append( '<div class="jetpack-memberships_success">' +
 					'<h4>Success!</h4>' +
 					'<p>You have purchased subscription and now can enjoy all the benefits.</p>' +
 					'<p>Your subscription is valid until "' + data.end_date + '"</p>' +