diff --git a/src/js/client.js b/src/js/client.js
index 53262f44d..4c5995501 100644
--- a/src/js/client.js
+++ b/src/js/client.js
@@ -3118,6 +3118,8 @@ angular.module('Application').service('Client', ['$http', '$interval', '$timeout
 
             if ('accessRestriction' in data) { // since it can be null
                 return 'Access restriction of ' + appName(app) + ' was changed';
+            } else if ('operators' in data) {
+                return 'Operators of ' + appName(app) + ' was changed';
             } else if (data.label) {
                 return 'Label of ' + appName(app) + ' was set to ' + q(data.label);
             } else if (data.tags) {