diff --git a/semaphore/docker-compose.yml b/semaphore/docker-compose.yml
index fcb3e79..7892d7a 100644
--- a/semaphore/docker-compose.yml
+++ b/semaphore/docker-compose.yml
@@ -21,7 +21,7 @@ services:
     restart: always
     # Map the host port to the container's fixed port 3000
     ports:
-      - "${SEMAPHORE_PORT_HOST}:3033"
+      - "${SEMAPHORE_PORT_HOST:-3033}:3000"
     # Load environment variables from the .env file
     env_file:
       - .env