diff --git a/tools/widl/widl.c b/tools/widl/widl.c
index c49b009622b..9b14de20fe4 100644
--- a/tools/widl/widl.c
+++ b/tools/widl/widl.c
@@ -253,7 +253,6 @@ static void write_dlldata_list(struct list *filenames)
 
   fprintf(dlldata, "/*** Autogenerated by WIDL %s ", PACKAGE_VERSION);
   fprintf(dlldata, "- Do not edit ***/\n\n");
-  fprintf(dlldata, "#define PROXY_DELEGATION\n");
   fprintf(dlldata, "#include <objbase.h>\n");
   fprintf(dlldata, "#include <rpcproxy.h>\n\n");
   start_cplusplus_guard(dlldata);