diff --git a/docker-compose.master.yml b/docker-compose.master.yml
index 15e17b8..2126dbf 100644
--- a/docker-compose.master.yml
+++ b/docker-compose.master.yml
@@ -13,6 +13,8 @@ services:
       - mariadb_data:/var/lib/mysql
     networks:
       - pdns_network
+    ports:
+      - "3306:3306"
     restart: always
 
   pdns:
diff --git a/docker-compose.slave.yml b/docker-compose.slave.yml
index 56b3541..647fc10 100644
--- a/docker-compose.slave.yml
+++ b/docker-compose.slave.yml
@@ -13,6 +13,8 @@ services:
       - mariadb_data:/var/lib/mysql
     networks:
       - pdns_network
+    ports:
+      - "3306:3306"
     restart: always
 
   pdns: