diff --git a/models/staging/stg_ga4__events.sql b/models/staging/stg_ga4__events.sql
index dc023778..d1290069 100644
--- a/models/staging/stg_ga4__events.sql
+++ b/models/staging/stg_ga4__events.sql
@@ -22,7 +22,7 @@ include_session_partition_key as (
         CONCAT(session_key, CAST(event_date_dt as STRING)) as session_partition_key
     from include_session_key
 ),
--- Add unique key for events. Potential to not be unique if session_key is null and uniqueness depends on differentiation by that value.
+-- Add unique key for events. Potential to not be unique if client_key or session_id is null and uniqueness depends on differentiation by that value.
 include_event_key as (
     select 
         *,