diff --git a/templates/Guacamole/0/docker-compose.yml b/templates/Guacamole/0/docker-compose.yml
index c278ea0..551ca50 100644
--- a/templates/Guacamole/0/docker-compose.yml
+++ b/templates/Guacamole/0/docker-compose.yml
@@ -57,7 +57,7 @@ services:
       - 1.1.1.1
       - 1.0.0.1
     environment:
-      MYSQL_DB: guacamole_db
+      MYSQL_DATABASE: guacamole_db
       MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASS}
       MYSQL_USER: guacamole_user
       MYSQL_PASSWORD: ${DB_USER_PASS}