diff --git a/addons/mail/static/src/core/web/chat_window_service_patch.js b/addons/mail/static/src/core/web/chat_window_service_patch.js
index 6f5668129a9..3c8b2f08934 100644
--- a/addons/mail/static/src/core/web/chat_window_service_patch.js
+++ b/addons/mail/static/src/core/web/chat_window_service_patch.js
@@ -12,7 +12,7 @@ patch(ChatWindowService.prototype, "mail/core/web", {
             // chat window was opened from the messaging menu. In that
             // case it should be re-opened to simulate it was always
             // there in the background.
-            document.querySelector(".o_menu_systray i[aria-label='Messages']").click();
+            document.querySelector(".o_menu_systray i[aria-label='Messages']")?.click();
             // ensure messaging menu is opened before chat window is closed
             await Promise.resolve();
         }