diff --git a/docker-compose.yml b/docker-compose.yml
index 8e2f129..c487694 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,8 @@ services:
       sh -c "mkdir -p /mosquitto/config/ssl &&
              cp /sources/ssl/*.* /mosquitto/config/ssl/  &&
              cp /sources/config/*.* /mosquitto/config/ &&
-             cp /sources/passwords/passwords /mosquitto/config/"
+             cp /sources/passwords/passwords /mosquitto/config/ &&
+             chmod 0700 /mosquitto/config/passwords"
     volumes:
       - /opt/hawser-stacks/mosquitto/sources:/sources
       - /var/lib/docker/volumes/mosquitto/data:/mosquitto/data