diff --git a/addons/web/static/lib/tempusdominus/tempusdominus.js b/addons/web/static/lib/tempusdominus/tempusdominus.js
index 6322e501ed8..65be37f77d4 100644
--- a/addons/web/static/lib/tempusdominus/tempusdominus.js
+++ b/addons/web/static/lib/tempusdominus/tempusdominus.js
@@ -2777,7 +2777,8 @@ var TempusDominusBootstrap4 = function ($) {
         if ($target.length === 0) {
             return;
         }
-        if (!config._options.allowInputToggle) {
+        // /!\ ODOO FIX: check on 'config' existence added by odoo
+        if (!(config && config._options.allowInputToggle)) {
             return;
         }
         TempusDominusBootstrap4._jQueryInterface.call($target, 'show', event);