diff --git a/docker-compose-ssl.yml b/docker-compose-ssl.yml
index 26495b6..33795fe 100644
--- a/docker-compose-ssl.yml
+++ b/docker-compose-ssl.yml
@@ -44,8 +44,8 @@ services:
       - PUID=1000
       - PGID=1000
       - TZ=Europe/Berlin
-      - OTR_USER="user"
-      - OTR_PASS="password"
+      - OTR_USER=user
+      - OTR_PASS=password
       - OTR_HOST=mqtt.domain.com
       - OTR_PORT=8883
       - OTR_CAFILE=/config/ca.pem