diff --git a/addons/im_livechat/__manifest__.py b/addons/im_livechat/__manifest__.py
index 8a4ac0c5784..0319efed2e4 100644
--- a/addons/im_livechat/__manifest__.py
+++ b/addons/im_livechat/__manifest__.py
@@ -111,6 +111,7 @@ Help your customers with this chat, and analyse their feedback.
             'web/static/src/legacy/js/core/rpc.js',
             'web/static/src/legacy/js/core/widget.js',
             'web/static/src/legacy/js/core/registry.js',
+            'web/static/src/session.js',
             'web/static/src/legacy/js/core/session.js',
             'web/static/src/legacy/js/core/concurrency.js',
             'web/static/src/legacy/js/core/utils.js',