diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c
index eca212a44abcbf88d42659766c42475a0091606f..82ca5c911b7dbe8d46e2c697b1b03a0b67c5f4c7 100644
--- a/src/bin/pg_dump/pg_dumpall.c
+++ b/src/bin/pg_dump/pg_dumpall.c
@@ -1904,7 +1904,7 @@ dumpDbRoleConfig(PGconn *conn)
 	/* Need "ORDER BY" here to keep order consistency cross pg_dump call */
 	printfPQExpBuffer(buf, "SELECT rolname, datname, unnest(setconfig) "
 					  "FROM pg_db_role_setting, pg_authid, pg_database "
-		  "WHERE setrole = pg_authid.oid AND setdatabase = pg_database.oid ORDER BY 1,2");
+		  "WHERE setrole = pg_authid.oid AND setdatabase = pg_database.oid ORDER BY 1,2,3");
 	res = executeQuery(conn, buf->data);
 
 	if (PQntuples(res) > 0)