diff --git a/warehouse/dbt/models/intermediate/metrics/code/int_code_metric__time_to_merge_days_average.sql b/warehouse/dbt/models/intermediate/metrics/code/int_code_metric__time_to_merge_days_average.sql
index 08ee27262..aa0610b86 100644
--- a/warehouse/dbt/models/intermediate/metrics/code/int_code_metric__time_to_merge_days_average.sql
+++ b/warehouse/dbt/models/intermediate/metrics/code/int_code_metric__time_to_merge_days_average.sql
@@ -32,6 +32,7 @@ time_to_merge as (
     on
       pr.number = m.number
       and pr.to_artifact_id = m.to_artifact_id
+  where m.merged_at > pr.created_at
 ),
 
 time_to_merge_events as (