diff --git a/docker/docker-compose.host.yml b/docker/docker-compose.host.yml
index 7dd0a984143..092ee6c73da 100644
--- a/docker/docker-compose.host.yml
+++ b/docker/docker-compose.host.yml
@@ -22,7 +22,7 @@ services:
     network_mode: host
     environment:
       PSQL_HOST: "localhost"
-      EDITOAST_PORT: 8090
+      EDITOAST_PORT: "8090"
       OSRD_BACKEND_URL: "http://localhost:8080"
       REDIS_URL: "redis://localhost"
       DATABASE_URL: "postgres://osrd:password@localhost:5432/osrd"