diff --git a/addons/mail/static/src/js/chat_manager.js b/addons/mail/static/src/js/chat_manager.js
index f7aaf73637e..2a64dcda828 100644
--- a/addons/mail/static/src/js/chat_manager.js
+++ b/addons/mail/static/src/js/chat_manager.js
@@ -611,7 +611,7 @@ var ChatManager =  Class.extend(Mixins.EventDispatcherMixin, ServicesMixin, {
         Mixins.EventDispatcherMixin.init.call(this);
         this.setParent(parent);
 
-        this.bus = new Bus();
+        this.bus = new Bus(this);
         this.bus.on('client_action_open', null, function (open) {
             client_action_open = open;
         });
diff --git a/addons/point_of_sale/static/src/js/devices.js b/addons/point_of_sale/static/src/js/devices.js
index bf11db31bf2..f06abc15c66 100644
--- a/addons/point_of_sale/static/src/js/devices.js
+++ b/addons/point_of_sale/static/src/js/devices.js
@@ -93,8 +93,9 @@ var JobQueue = function(){
 
 var ProxyDevice  = core.Class.extend(mixins.PropertiesMixin,{
     init: function(parent,options){
-        mixins.PropertiesMixin.init.call(this,parent);
+        mixins.PropertiesMixin.init.call(this);
         var self = this;
+        this.setParent(parent);
         options = options || {};
 
         this.pos = parent;
diff --git a/addons/pos_restaurant/static/src/js/multiprint.js b/addons/pos_restaurant/static/src/js/multiprint.js
index dac0a906850..1a135bdfe03 100644
--- a/addons/pos_restaurant/static/src/js/multiprint.js
+++ b/addons/pos_restaurant/static/src/js/multiprint.js
@@ -11,7 +11,8 @@ var QWeb = core.qweb;
 
 var Printer = core.Class.extend(mixins.PropertiesMixin,{
     init: function(parent,options){
-        mixins.PropertiesMixin.init.call(this,parent);
+        mixins.PropertiesMixin.init.call(this);
+        this.setParent(parent);
         options = options || {};
         var url = options.url || 'http://localhost:8069';
         this.connection = new Session(undefined,url, { use_cors: true});
diff --git a/addons/web/static/src/js/_deprecated/data.js b/addons/web/static/src/js/_deprecated/data.js
index 14b3daeb2c6..e13ca14da22 100644
--- a/addons/web/static/src/js/_deprecated/data.js
+++ b/addons/web/static/src/js/_deprecated/data.js
@@ -314,6 +314,7 @@ var DataSet =  Class.extend(mixins.PropertiesMixin, {
      */
     init: function (parent, model, context) {
         mixins.PropertiesMixin.init.call(this);
+        this.setParent(parent);
         this.model = model;
         this.context = context || {};
         this.index = null;
diff --git a/addons/web/static/src/js/chrome/control_panel.js b/addons/web/static/src/js/chrome/control_panel.js
index 173d91aea25..3c445fd6bcb 100644
--- a/addons/web/static/src/js/chrome/control_panel.js
+++ b/addons/web/static/src/js/chrome/control_panel.js
@@ -47,7 +47,7 @@ var ControlPanel = Widget.extend({
             this.template = template;
         }
 
-        this.bus = new Bus();
+        this.bus = new Bus(this);
         this.bus.on("update", this, this.update);
     },
     /**
diff --git a/addons/web/static/src/js/core/bus.js b/addons/web/static/src/js/core/bus.js
index bf33c1fe01e..e2b76594946 100644
--- a/addons/web/static/src/js/core/bus.js
+++ b/addons/web/static/src/js/core/bus.js
@@ -8,8 +8,9 @@ var mixins = require('web.mixins');
  * Event Bus used to bind events scoped in the current instance
  */
 return Class.extend(mixins.EventDispatcherMixin, {
-    init: function() {
-        mixins.EventDispatcherMixin.init.call(this, parent);
+    init: function (parent) {
+        mixins.EventDispatcherMixin.init.call(this);
+        this.setParent(parent);
     },
 });
 
diff --git a/addons/web/static/src/js/core/session.js b/addons/web/static/src/js/core/session.js
index 670e367be2e..ee9427827ba 100644
--- a/addons/web/static/src/js/core/session.js
+++ b/addons/web/static/src/js/core/session.js
@@ -28,7 +28,8 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
           "override_session" is set to true.
      */
     init: function (parent, origin, options) {
-        mixins.EventDispatcherMixin.init.call(this, parent);
+        mixins.EventDispatcherMixin.init.call(this);
+        this.setParent(parent);
         options = options || {};
         this.module_list = (options.modules && options.modules.slice()) || (window.odoo._modules && window.odoo._modules.slice()) || [];
         this.server = null;