diff --git a/docker-compose.yml b/docker-compose.yml
index dfe7c4a..41e0945 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,6 +6,7 @@ services:
     container_name: kong-postgres
     environment:
       - POSTGRES_USER=kong
+      - PGUSER=kong
       - POSTGRES_DB=kong
       - POSTGRES_HOST_AUTH_METHOD=trust
     healthcheck: