diff --git a/docker-compose.yml b/docker-compose.yml
index 8ca3efb..aee1d60 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -85,6 +85,8 @@ services:
     restart: "always"
     expose:
       - "8080"
+    environment:
+      - FLAG_SECRET
     networks:
       hden:
         aliases:
@@ -110,6 +112,7 @@ services:
        - CHALLENGE_MASTER_SALT
        - COINMINER_SSH_HOST=host1
        - COMMAND_PROC_URL=http://host2:8080/commandproc
+       - FLAG_SECRET
     networks:
       hden:
         aliases:
@@ -121,4 +124,4 @@ volumes:
 networks:
   portal:
   insecure:
-  hden:
\ No newline at end of file
+  hden:
diff --git a/hackerden/.env b/hackerden/.env
new file mode 100644
index 0000000..a8b89c0
--- /dev/null
+++ b/hackerden/.env
@@ -0,0 +1 @@
+FLAG_SECRET="put something random here"