diff --git a/npm/packs/select2/src/select2-bootstrap-modal-patch.js b/npm/packs/select2/src/select2-bootstrap-modal-patch.js
index 1fee6e798d..d7b5d2d9c4 100644
--- a/npm/packs/select2/src/select2-bootstrap-modal-patch.js
+++ b/npm/packs/select2/src/select2-bootstrap-modal-patch.js
@@ -1,4 +1,6 @@
 /*
     https://select2.org/troubleshooting/common-problems
 */
-$.fn.modal.Constructor.prototype._enforceFocus = function () { };
\ No newline at end of file
+if ($.fn.modal) {
+    $.fn.modal.Constructor.prototype._enforceFocus = function () { };
+}