diff --git a/contrib/win32/err.h b/contrib/win32/err.h
index c9e15f1..b38bcb9 100644
--- a/contrib/win32/err.h
+++ b/contrib/win32/err.h
@@ -14,4 +14,6 @@
 	exit (code); \
 } while (0)
 
+#define err(code, ...) errx(code, ...)
+
 #endif /* !_ERR_H_ */