diff --git a/app/assets/javascripts/admin/components/site-setting.js.es6 b/app/assets/javascripts/admin/components/site-setting.js.es6
index 15058e87160..09b0dfe19e4 100644
--- a/app/assets/javascripts/admin/components/site-setting.js.es6
+++ b/app/assets/javascripts/admin/components/site-setting.js.es6
@@ -28,12 +28,11 @@ export default Ember.Component.extend(BufferedContent, ScrollTop, {
 
   @computed('buffered.value')
   enabled: {
-    get() {
-      const bufferedValue = this.get('buffered.value');
+    get(bufferedValue) {
       if (Ember.isEmpty(bufferedValue)) { return false; }
       return bufferedValue === 'true';
     },
-    set(key, value) {
+    set(value) {
       this.set('buffered.value', value ? 'true' : 'false');
     }
   },
diff --git a/app/assets/javascripts/discourse/components/desktop-notification-config.js.es6 b/app/assets/javascripts/discourse/components/desktop-notification-config.js.es6
index 1d5f4bd77bd..eb4e893f1f5 100644
--- a/app/assets/javascripts/discourse/components/desktop-notification-config.js.es6
+++ b/app/assets/javascripts/discourse/components/desktop-notification-config.js.es6
@@ -11,10 +11,8 @@ export default Ember.Component.extend({
 
   @computed
   notificationsDisabled: {
-    set(key, value) {
-      if (arguments.length > 1) {
-        localStorage.setItem('notifications-disabled', value);
-      }
+    set(value) {
+      localStorage.setItem('notifications-disabled', value);
       return localStorage.getItem('notifications-disabled');
     },
     get() {
diff --git a/app/assets/javascripts/discourse/controllers/topic.js.es6 b/app/assets/javascripts/discourse/controllers/topic.js.es6
index c112f3458c5..23c803e9954 100644
--- a/app/assets/javascripts/discourse/controllers/topic.js.es6
+++ b/app/assets/javascripts/discourse/controllers/topic.js.es6
@@ -68,13 +68,10 @@ export default Ember.Controller.extend(SelectedPostsCount, BufferedContent, {
 
   @computed('model.postStream.summary')
   show_deleted: {
-    set(key, value) {
+    set(value) {
       const postStream = this.get('model.postStream');
       if (!postStream) { return; }
-
-      if (arguments.length > 1) {
-        postStream.set('show_deleted', value);
-      }
+      postStream.set('show_deleted', value);
       return postStream.get('show_deleted') ? true : undefined;
     },
     get() {
@@ -84,13 +81,10 @@ export default Ember.Controller.extend(SelectedPostsCount, BufferedContent, {
 
   @computed('model.postStream.summary')
   filter: {
-    set(key, value) {
+    set(value) {
       const postStream = this.get('model.postStream');
       if (!postStream) { return; }
-
-      if (arguments.length > 1) {
-        postStream.set('summary', value === "summary");
-      }
+      postStream.set('summary', value === "summary");
       return postStream.get('summary') ? "summary" : undefined;
     },
     get() {
@@ -100,13 +94,10 @@ export default Ember.Controller.extend(SelectedPostsCount, BufferedContent, {
 
   @computed('model.postStream.streamFilters.username_filters')
   username_filters: {
-    set(key, value) {
+    set(value) {
       const postStream = this.get('model.postStream');
       if (!postStream) { return; }
-
-      if (arguments.length > 1) {
-        postStream.set('streamFilters.username_filters', value);
-      }
+      postStream.set('streamFilters.username_filters', value);
       return postStream.get('streamFilters.username_filters');
     },
     get() {