diff --git a/NT/tools/rntcl b/NT/tools/rntcl
index d94f5427f36826df68512c98f86869f9e0fc188f..74a2cab90308837a8058beb4ac6cb525035f3916 100755
--- a/NT/tools/rntcl
+++ b/NT/tools/rntcl
@@ -47,7 +47,7 @@ int main(int argc, string *argv)
     "-D__WIN32__",
     "-D_WIN32",
     "-D__NT__",
-    "-D__STDC__",
+//    "-D__STDC__",  
     "-nologo",
   });