diff --git a/src/Kentico.Xperience.CalendarComponent/Components/MultiCalendarFormComponent/_MultiCalendarFormComponent.cshtml b/src/Kentico.Xperience.CalendarComponent/Components/MultiCalendarFormComponent/_MultiCalendarFormComponent.cshtml
index 4503d93..09d4598 100644
--- a/src/Kentico.Xperience.CalendarComponent/Components/MultiCalendarFormComponent/_MultiCalendarFormComponent.cshtml
+++ b/src/Kentico.Xperience.CalendarComponent/Components/MultiCalendarFormComponent/_MultiCalendarFormComponent.cshtml
@@ -23,7 +23,7 @@
     {
         dateFormat = "m/d/Y",
         altInput = true,
-        altFormat = Model.Properties.DateFormat,
+        altFormat = Model.Properties.DateFormat.Replace('M', 'm'),
         defaultDate = defaultDate,
         mode = Model.Properties.IsMulti ? "multiple" : "range"
     };