diff --git a/src/js/client.js b/src/js/client.js
index 54d8b4186..557ccae23 100644
--- a/src/js/client.js
+++ b/src/js/client.js
@@ -1601,8 +1601,6 @@ angular.module('Application').service('Client', ['$http', '$interval', '$timeout
     Client.prototype.refreshAppCache = function (id, callback) {
         var that = this;
 
-        callback = typeof callback === 'function' ? callback : function () {};
-
         this.getApp(id, function (error, app) {
             if (error) return callback(error);
 
@@ -1626,8 +1624,6 @@ angular.module('Application').service('Client', ['$http', '$interval', '$timeout
     Client.prototype.refreshInstalledApps = function (callback) {
         var that = this;
 
-        callback = typeof callback === 'function' ? callback : function () {};
-
         this.getApps(function (error, apps) {
             if (error) return callback(error);
 
diff --git a/src/views/app.js b/src/views/app.js
index 17ff57ec5..876e91289 100644
--- a/src/views/app.js
+++ b/src/views/app.js
@@ -684,7 +684,7 @@ angular.module('Application').controller('AppController', ['$scope', '$location'
                         Client.error(error);
                     } else {
                         $('#uninstallModal').modal('hide');
-                        Client.refreshAppCache($scope.app.id); // reflect the new app state immediately
+                        Client.refreshAppCache($scope.app.id, function() {}); // reflect the new app state immediately
                         $location.path('/apps');
                     }
 
diff --git a/src/views/apps.js b/src/views/apps.js
index 21337d10f..ba118d0fa 100644
--- a/src/views/apps.js
+++ b/src/views/apps.js
@@ -45,9 +45,9 @@ angular.module('Application').controller('AppsController', ['$scope', '$timeout'
     };
 
     Client.onReady(function () {
-        Client.refreshInstalledApps(); // refresh the new list immediately when switching from another view (appstore)
+        Client.refreshInstalledApps(function () {}); // refresh the new list immediately when switching from another view (appstore)
 
-        var refreshAppsTimer = $interval(Client.refreshInstalledApps.bind(Client), 5000);
+        var refreshAppsTimer = $interval(Client.refreshInstalledApps.bind(Client, function () {}), 5000);
         $scope.$on('$destroy', function () {
             $interval.cancel(refreshAppsTimer);
         });