diff --git a/semaphore/docker-compose.yml b/semaphore/docker-compose.yml
index 131b10a..134200f 100644
--- a/semaphore/docker-compose.yml
+++ b/semaphore/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     environment:
       SEMAPHORE_DB_USER: ${SEMAPHORE_DB_USER:-semaphore}
       SEMAPHORE_DB_PASS: ${SEMAPHORE_DB_PASS:-semaphorepass}
-      SEMAPHORE_DB_HOST: mariadb
+      SEMAPHORE_DB_HOST: semaphore-mariadb
       SEMAPHORE_DB_PORT: 3306
       SEMAPHORE_DB_DIALECT: mysql
       SEMAPHORE_DB: semaphore
diff --git a/semaphore/sample-extends.yml b/semaphore/sample-extends.yml
index 981d6b0..49daaf1 100644
--- a/semaphore/sample-extends.yml
+++ b/semaphore/sample-extends.yml
@@ -6,8 +6,8 @@ services:
       file: ${COOKBOOK}/semaphore/docker-compose.yml
       service: semaphore
 
-  monica-db:
+  semaphore-mariadb:
     extends:
       file: ${COOKBOOK}/mariadb/docker-compose.yml
       service: mariadb
-      
\ No newline at end of file
+