diff --git a/include/windef.h b/include/windef.h
index fecdc71eb55..db2f0af2d3e 100644
--- a/include/windef.h
+++ b/include/windef.h
@@ -295,7 +295,6 @@ DECLARE_HANDLE(HWND);
 DECLARE_HANDLE(HKL);
 DECLARE_HANDLE(HIC);
 DECLARE_HANDLE(HRASCONN);
-#undef DECLARE_HANDLE
 
 /* Handle types that must remain interchangeable even with strict on */