diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index a9c1932..a008e8f 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -23,7 +23,6 @@ services:
       DATABASE_NAME: "qrcode"
       DATABASE_USER: "qrcode"
       DATABASE_PASSWORD: "changeme"
-      DATABASE_PREFIX: ""
       DATABASE_CHARSET: "utf8"
     volumes:
       - ./data/app/config:/var/www/html/config