diff --git a/APPL/PRS/prs_edit_perslid.asp b/APPL/PRS/prs_edit_perslid.asp
index 59d4c85e89..30acf9b572 100644
--- a/APPL/PRS/prs_edit_perslid.asp
+++ b/APPL/PRS/prs_edit_perslid.asp
@@ -241,7 +241,8 @@ if (prs_key > 0) // Fotoblokje alleen bij bestaande records
             + "     FROM V$TIMEZONE_NAMES "
             + " GROUP BY tzname, TZ_OFFSET (tzname) "
             + " ORDER BY TO_NUMBER(SUBSTR (TZ_OFFSET (tzname), 1, 3) "
-            + "                 || SUBSTR (TZ_OFFSET (tzname), 5, 2)) ASC";
+            + "                 || SUBSTR (TZ_OFFSET (tzname), 5, 2)) ASC,"
+            + "          tzname";
 
     FCLTselector("prs_tz", sql,
                { label: L("lcl_prs_person_timezone"),