diff --git a/scripts/migration_timescaledb.sql b/scripts/migration_timescaledb.sql
index 93c8b05..ec2b638 100644
--- a/scripts/migration_timescaledb.sql
+++ b/scripts/migration_timescaledb.sql
@@ -40,7 +40,7 @@ CREATE SEQUENCE public.messages2_id_seq
 ALTER TABLE public.messages2
     ADD CONSTRAINT messages2_pkey PRIMARY KEY (id, "timestamp");
 ALTER TABLE public.messages2
-    ADD CONSTRAINT messages2_msg_id
+    ADD CONSTRAINT messages2_msg_id_timestamp
     UNIQUE (msg_id, "timestamp");
 
 ALTER TABLE public.messages2 OWNER TO datanommer;