diff --git a/postgres-backup-s3/integration-tests.test.yml b/postgres-backup-s3/integration-tests.test.yml
index 1ebba38..9ec90ba 100644
--- a/postgres-backup-s3/integration-tests.test.yml
+++ b/postgres-backup-s3/integration-tests.test.yml
@@ -24,3 +24,4 @@ services:
       - POSTGRES_USER=user
       - POSTGRES_PASSWORD=12345
       - POSTGRES_EXTRA_OPTS=--schema=public -b
+      - S3_FILENAME=postgres-backup-test