diff --git a/addons/im_livechat/static/src/legacy/models/timer.js b/addons/im_livechat/static/src/legacy/models/timer.js
new file mode 100644
index 00000000000..3f02c0b459e
--- /dev/null
+++ b/addons/im_livechat/static/src/legacy/models/timer.js
@@ -0,0 +1,69 @@
+odoo.define('im_livechat.legacy.mail.model.Timer', function (require) {
+"use strict";
+
+var Class = require('web.Class');
+
+/**
+ * This class creates a timer which, when times out, calls a function.
+ */
+var Timer = Class.extend({
+
+    /**
+     * Instantiate a new timer. Note that the timer is not started on
+     * initialization (@see start method).
+     *
+     * @param {Object} params
+     * @param {number} params.duration duration of timer before timeout in
+     *   milli-seconds.
+     * @param {function} params.onTimeout function that is called when the
+     *   timer times out.
+     */
+    init: function (params) {
+        this._duration = params.duration;
+        this._timeout = undefined;
+        this._timeoutCallback = params.onTimeout;
+    },
+
+    //--------------------------------------------------------------------------
+    // Public
+    //--------------------------------------------------------------------------
+
+    /**
+     * Clears the countdown of the timer.
+     */
+    clear: function () {
+        clearTimeout(this._timeout);
+    },
+    /**
+     * Resets the timer, i.e. resets its duration.
+     */
+    reset: function () {
+        this.clear();
+        this.start();
+    },
+    /**
+     * Starts the timer, i.e. after a certain duration, it times out and calls
+     * a function back.
+     */
+    start: function () {
+        this._timeout = setTimeout(this._onTimeout.bind(this), this._duration);
+    },
+
+    //--------------------------------------------------------------------------
+    // Handler
+    //--------------------------------------------------------------------------
+
+    /**
+     * Called when the timer times out, calls back a function on timeout.
+     *
+     * @private
+     */
+    _onTimeout: function () {
+        this._timeoutCallback();
+    },
+
+});
+
+return Timer;
+
+});
diff --git a/addons/im_livechat/static/src/legacy/public_livechat.js b/addons/im_livechat/static/src/legacy/public_livechat.js
index b26e73aa052..6ac71e18bc4 100644
--- a/addons/im_livechat/static/src/legacy/public_livechat.js
+++ b/addons/im_livechat/static/src/legacy/public_livechat.js
@@ -634,76 +634,6 @@ return {
 
 });
 
-odoo.define('im_livechat.legacy.mail.model.Timer', function (require) {
-"use strict";
-
-var Class = require('web.Class');
-
-/**
- * This class creates a timer which, when times out, calls a function.
- */
-var Timer = Class.extend({
-
-    /**
-     * Instantiate a new timer. Note that the timer is not started on
-     * initialization (@see start method).
-     *
-     * @param {Object} params
-     * @param {number} params.duration duration of timer before timeout in
-     *   milli-seconds.
-     * @param {function} params.onTimeout function that is called when the
-     *   timer times out.
-     */
-    init: function (params) {
-        this._duration = params.duration;
-        this._timeout = undefined;
-        this._timeoutCallback = params.onTimeout;
-    },
-
-    //--------------------------------------------------------------------------
-    // Public
-    //--------------------------------------------------------------------------
-
-    /**
-     * Clears the countdown of the timer.
-     */
-    clear: function () {
-        clearTimeout(this._timeout);
-    },
-    /**
-     * Resets the timer, i.e. resets its duration.
-     */
-    reset: function () {
-        this.clear();
-        this.start();
-    },
-    /**
-     * Starts the timer, i.e. after a certain duration, it times out and calls
-     * a function back.
-     */
-    start: function () {
-        this._timeout = setTimeout(this._onTimeout.bind(this), this._duration);
-    },
-
-    //--------------------------------------------------------------------------
-    // Handler
-    //--------------------------------------------------------------------------
-
-    /**
-     * Called when the timer times out, calls back a function on timeout.
-     *
-     * @private
-     */
-    _onTimeout: function () {
-        this._timeoutCallback();
-    },
-
-});
-
-return Timer;
-
-});
-
 odoo.define('im_livechat.legacy.mail.model.Timers', function (require) {
 "use strict";