diff --git a/dlls/user.exe16/bidi.c b/dlls/user.exe16/bidi.c
index e415785a0de..2b4f1146a8e 100644
--- a/dlls/user.exe16/bidi.c
+++ b/dlls/user.exe16/bidi.c
@@ -62,7 +62,7 @@ DWORD WINAPI ChangeKeyboardCodePage16( UINT16 iLangLeft, UINT16 iLangRight )
  * RETURNS
  *    The old keyboard layout pair.
  */
-DWORD WINAPI ChangeKeyboardLanguage16( UINT16 iLangLeft, UINT iLangRight )
+DWORD WINAPI ChangeKeyboardLanguage16( UINT16 iLangLeft, UINT16 iLangRight )
 {
     FIXME( "( %hu, %hu ): stub\n", iLangLeft, iLangRight );
     return 0;