diff --git a/docker-compose-generator/docker-fragments/mysql.yml b/docker-compose-generator/docker-fragments/mysql.yml
index fbf9ebe..739ee72 100644
--- a/docker-compose-generator/docker-fragments/mysql.yml
+++ b/docker-compose-generator/docker-fragments/mysql.yml
@@ -7,7 +7,7 @@ services:
     volumes:
       - "mysql_datadir:/var/lib/mysql"
     environment:
-      MYSQL_ALLOW_EMPTY_PASSWORD:"yes"
+    - MYSQL_ALLOW_EMPTY_PASSWORD="true"
 
   btcpayserver:
     environment: