diff --git a/src/time/__tz.c b/src/time/__tz.c
index 2eb6ab4e..09a6317e 100644
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
@@ -185,7 +185,7 @@ static void do_tzset()
 	zi = map;
 	if (map) {
 		int scale = 2;
-		if (map[4]=='2') {
+		if (map[4]!='1') {
 			size_t skip = zi_dotprod(zi+20, VEC(1,1,8,5,6,1), 6);
 			trans = zi+skip+44+44;
 			scale++;