diff --git a/nbase/nbase_winunix.h b/nbase/nbase_winunix.h
index 60401c013..9a85cca65 100644
--- a/nbase/nbase_winunix.h
+++ b/nbase/nbase_winunix.h
@@ -170,6 +170,7 @@
 /* Windows error message names */
 #undef  ECONNABORTED
 #define ECONNABORTED    WSAECONNABORTED
+#undef ECONNRESET
 #define ECONNRESET      WSAECONNRESET
 #define ECONNREFUSED    WSAECONNREFUSED
 #undef  EAGAIN