diff --git a/src/js/_enqueues/wp/customize/controls.js b/src/js/_enqueues/wp/customize/controls.js
index 47272c8b3e..f2866e5011 100644
--- a/src/js/_enqueues/wp/customize/controls.js
+++ b/src/js/_enqueues/wp/customize/controls.js
@@ -8128,6 +8128,7 @@
 					_code = code || 'changeset_locked';
 					_params = _.extend(
 						{
+							message: '',
 							type: 'warning',
 							containerClasses: '',
 							lockUser: {}