diff --git a/wp-includes/class-wp-customize-nav-menus.php b/wp-includes/class-wp-customize-nav-menus.php
index a6bae20..f82c855 100644
--- a/wp-includes/class-wp-customize-nav-menus.php
+++ b/wp-includes/class-wp-customize-nav-menus.php
@@ -1174,6 +1174,9 @@ final class WP_Customize_Nav_Menus {
 	 * @return void
 	 */
 	protected function print_custom_links_available_menu_item() {
+
+		$_nav_custom_menu_item_url = is_ssl() ? 'https://' : 'http://';
+		
 		?>
 		<div id="new-custom-menu-item" class="accordion-section">
 			<h4 class="accordion-section-title" role="presentation">
@@ -1187,7 +1190,7 @@ final class WP_Customize_Nav_Menus {
 				<input type="hidden" value="custom" id="custom-menu-item-type" name="menu-item[-1][menu-item-type]" />
 				<p id="menu-item-url-wrap" class="wp-clearfix">
 					<label class="howto" for="custom-menu-item-url"><?php _e( 'URL' ); ?></label>
-					<input id="custom-menu-item-url" name="menu-item[-1][menu-item-url]" type="text" class="code menu-item-textbox" value="http://">
+					<input id="custom-menu-item-url" name="menu-item[-1][menu-item-url]" type="text" class="code menu-item-textbox" value="" placeholder="<?php echo $_nav_custom_menu_item_url; ?>" />
 				</p>
 				<p id="menu-item-name-wrap" class="wp-clearfix">
 					<label class="howto" for="custom-menu-item-name"><?php _e( 'Link Text' ); ?></label>