diff --git a/docker-compose.yml b/docker-compose.yml
index e4822d38..93ae7dff 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,6 +10,7 @@ services:
         MYSQL_DATABASE: ${MYSQL_DATABASE:-wiq_es04b}
         MYSQL_USER: ${MYSQL_USER:-wiq_es04b}
         MYSQL_PASSWORD: ${MYSQL_PASSWORD:-wiq_es04b}
+        MYSQL_PORT: ${MYSQL_PORT:-3306}
     volumes:
       - db_data:/var/lib/mysql
     networks: