diff --git a/lib/libc/posix1e/mac.c b/lib/libc/posix1e/mac.c
index def4bb20f21..d8a1b2ddc81 100644
--- a/lib/libc/posix1e/mac.c
+++ b/lib/libc/posix1e/mac.c
@@ -365,7 +365,8 @@ mac_prepare_type(struct mac **mac, const char *name)
 			return (mac_prepare(mac, ld->ld_labels));
 	}
 
-	return (ENOENT);		/* XXXMAC: ENOLABEL */
+	errno = ENOENT;
+	return (-1);		/* XXXMAC: ENOLABEL */
 }
 
 int