diff --git a/lib/libc/gen/getpwent.c b/lib/libc/gen/getpwent.c
index 9ff593eed7f9..e8ac1e762281 100644
--- a/lib/libc/gen/getpwent.c
+++ b/lib/libc/gen/getpwent.c
@@ -442,8 +442,7 @@ _getyppass(struct passwd *pw, const char *name, const char *map)
 	/* Don't even bother with this if we aren't root. */
 	if (!geteuid())
 		if (_havemaster(_pw_yp_domain)) {
-			sprintf(mastermap,"master.passwd.%s",
-				strstr(map,"byuid") ? "byuid" : "byname");
+			sprintf(mastermap,"master.%s", map);
 			gotmaster++;
 		}