diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index 0198f242e7..dec975265e 100644
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -1583,7 +1583,8 @@ inline wxDateTime& wxDateTime::Set(const Tm& tm)
 {
     wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") );
 
-    return Set(tm.mday, (Month)tm.mon, tm.year, tm.hour, tm.min, tm.sec);
+    return Set(tm.mday, (Month)tm.mon, tm.year,
+               tm.hour, tm.min, tm.sec, tm.msec);
 }
 
 inline wxDateTime::wxDateTime(wxDateTime_t hour,