diff --git a/apps/rego-tunnel/docker-compose.json b/apps/rego-tunnel/docker-compose.json
index 90914a9..8f90265 100755
--- a/apps/rego-tunnel/docker-compose.json
+++ b/apps/rego-tunnel/docker-compose.json
@@ -19,7 +19,7 @@
         },
         {
           "key": "VERSION",
-          "value": "/storage/custom.iso"
+          "value": "${WINDOWS_VERSION}"
         },
         {
           "key": "KEY",