diff --git a/rtl/win/wininc/messages.inc b/rtl/win/wininc/messages.inc
index 5adb1f0518..d0c4ec983d 100644
--- a/rtl/win/wininc/messages.inc
+++ b/rtl/win/wininc/messages.inc
@@ -729,10 +729,12 @@
      TCM_GETITEMA = 4869;
      TCM_INSERTITEMA = 4871;
      TCM_SETITEMA = 4870;
+     TCM_SETUNICODEFORMAT = 8197; // = CCM_SETUNICODEFORMAT
+     TCM_GETUNICODEFORMAT = 8198; // = CCM_GETUNICODEFORMAT
 {$ifdef UNICODE}
 
   const
-     TCM_GETITEM = TCM_GETITEM;
+     TCM_GETITEM = TCM_GETITEMW;
      TCM_INSERTITEM = TCM_INSERTITEMW;
      TCM_SETITEM = TCM_SETITEMW;
 {$else}