diff --git a/src/wp-includes/class-wp-customize-widgets.php b/src/wp-includes/class-wp-customize-widgets.php
index ad5742fabe..ba1482876e 100644
--- a/src/wp-includes/class-wp-customize-widgets.php
+++ b/src/wp-includes/class-wp-customize-widgets.php
@@ -956,7 +956,7 @@ final class WP_Customize_Widgets {
 
 		call_user_func_array( 'wp_widget_control', $args );
 		$replacements = array(
-			'<form action="" method="post">' => '<div class="form">',
+			'<form method="post">' => '<div class="form">',
 			'</form>' => '</div><!-- .form -->',
 		);