diff --git a/src/js/_enqueues/lib/ajax-response.js b/src/js/_enqueues/lib/ajax-response.js
index b764823742..f1b0dcd361 100644
--- a/src/js/_enqueues/lib/ajax-response.js
+++ b/src/js/_enqueues/lib/ajax-response.js
@@ -18,7 +18,7 @@ window.wpAjax = jQuery.extend( {
 		return r;
 	},
 	parseAjaxResponse: function( x, r, e ) { // 1 = good, 0 = strange (bad data?), -1 = you lack permission.
-		var parsed = {}, re = jQuery('#' + r).empty(), err = '', successmsg = '';
+		var parsed = {}, re = jQuery('#' + r).empty(), err = '', noticeMessage = '';
 
 		if ( x && typeof x === 'object' && x.getElementsByTagName('wp_ajax') ) {
 			parsed.responses = [];
@@ -27,11 +27,14 @@ window.wpAjax = jQuery.extend( {
 				var th = jQuery(this), child = jQuery(this.firstChild), response;
 				response = { action: th.attr('action'), what: child.get(0).nodeName, id: child.attr('id'), oldId: child.attr('old_id'), position: child.attr('position') };
 				response.data = jQuery( 'response_data', child ).text();
-				if ( jQuery( 'body' ).hasClass( 'edit-tags-php' ) ) {
-					successmsg += response.data;
-				}
 				response.supplemental = {};
 				if ( !jQuery( 'supplemental', child ).children().each( function() {
+
+					if ( this.nodeName === 'notice' ) {
+						noticeMessage += jQuery(this).text();
+						return;
+					}
+
 					response.supplemental[this.nodeName] = jQuery(this).text();
 				} ).length ) { response.supplemental = false; }
 				response.errors = [];
@@ -52,10 +55,10 @@ window.wpAjax = jQuery.extend( {
 			if ( err.length ) {
 				re.html( '<div class="error">' + err + '</div>' );
 				wp.a11y.speak( err );
-			} else if ( successmsg.length ) {
-				re.html( '<div class="updated notice is-dismissible"><p>' + successmsg + '</p></div>');
+			} else if ( noticeMessage.length ) {
+				re.html( '<div class="updated notice is-dismissible"><p>' + noticeMessage + '</p></div>');
 				jQuery(document).trigger( 'wp-updates-notice-added' );
-				wp.a11y.speak( successmsg );
+				wp.a11y.speak( noticeMessage );
 			}
 			return parsed;
 		}
diff --git a/src/wp-admin/includes/ajax-actions.php b/src/wp-admin/includes/ajax-actions.php
index f600ef3d1b..f3196af31a 100644
--- a/src/wp-admin/includes/ajax-actions.php
+++ b/src/wp-admin/includes/ajax-actions.php
@@ -1121,7 +1121,11 @@ function wp_ajax_add_tag() {
 		array(
 			'what'         => 'taxonomy',
 			'data'         => $message,
-			'supplemental' => compact( 'parents', 'noparents' ),
+			'supplemental' => array(
+				'parents'   => $parents,
+				'noparents' => $noparents,
+				'notice'    => $message,
+			),
 		)
 	);