diff --git a/htdocs/langs/en_US/js/jquery.ui.datepicker.js b/htdocs/langs/en_US/js/jquery.ui.datepicker.js
new file mode 100644
index 00000000000..bfc5fd3a006
--- /dev/null
+++ b/htdocs/langs/en_US/js/jquery.ui.datepicker.js
@@ -0,0 +1 @@
+/* US initialisation for the jQuery UI date picker plugin. */
\ No newline at end of file