diff --git a/apps/app_sms.c b/apps/app_sms.c
index 8b6d0cb447232292ac2850375f502f8ef1804375..6baeaf80eebb71d1733448bf7eacadf1e10b6442 100755
--- a/apps/app_sms.c
+++ b/apps/app_sms.c
@@ -204,7 +204,11 @@ static void
 packdate (unsigned char *o, time_t w)
 {
   struct tm *t = localtime (&w);
+#ifdef __FreeBSD__
+  int z = - t->tm_gmtoff / 3600 / 15;
+#else
   int z = timezone / 3600 / 15;
+#endif
   *o++ = ((t->tm_year % 10) << 4) + (t->tm_year % 100) / 10;
   *o++ = (((t->tm_mon + 1) % 10) << 4) + (t->tm_mon + 1) / 10;
   *o++ = ((t->tm_mday % 10) << 4) + t->tm_mday / 10;