diff --git a/addons/website_event_track_online/static/src/scss/pwa_frontend.scss b/addons/website_event_track_online/static/src/scss/pwa_frontend.scss
index 0464174a6fc..f132890229d 100644
--- a/addons/website_event_track_online/static/src/scss/pwa_frontend.scss
+++ b/addons/website_event_track_online/static/src/scss/pwa_frontend.scss
@@ -21,6 +21,7 @@
         border-top: 1px solid $gray-200;
         box-shadow: 0 -0.125rem 0.25rem rgba(0, 0, 0, 0.075);
         font-size: 1rem;
+        z-index: $zindex-tooltip;
 
         .o_btn_close {
             margin-left: 0;