diff --git a/src/hlua_fcn.c b/src/hlua_fcn.c
index 8406bfe..db46279 100644
--- a/src/hlua_fcn.c
+++ b/src/hlua_fcn.c
@@ -287,7 +287,7 @@
 	 * the timezone from the broken-down time, it must be fixed
 	 * after the conversion.
 	 */
-	time = timegm(&tm);
+	time = my_timegm(&tm);
 	if (time == -1) {
 		lua_pushnil(L);
 		return 1;