diff --git a/docker-compose.yml b/docker-compose.yml
index 60c715b1e..5f9ad0ccd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,6 +8,7 @@ services:
     ports:
       - "5432:5432"
     environment:
+      - "POSTGRES_USER=postgres"
       - "POSTGRES_PASSWORD=mysecretpassword"
 
   web: