diff --git a/mosk-images/template.json b/mosk-images/template.json
index ce4d8d8..0594043 100644
--- a/mosk-images/template.json
+++ b/mosk-images/template.json
@@ -10,7 +10,8 @@
     "kernel_version": "{{ env `KERNEL_VERSION` }}",
     "docker_ee_release": "{{ env `DOCKER_EE_RELEASE` }}",
     "docker_ee_url": "{{ env `DOCKER_EE_URL` }}",
-    "docker_ucp_image": "{{ env `DOCKER_UCP_IMAGE` }}"
+    "docker_ucp_image": "{{ env `DOCKER_UCP_IMAGE` }}",
+    "docker_ucp_packages": "{{ env `DOCKER_UCP_PACKAGES` }}"
 
   },
   "provisioners": [
@@ -20,7 +21,8 @@
           "KERNEL_VERSION={{user `kernel_version`}}",
           "DOCKER_EE_RELEASE={{user `docker_ee_release`}}",
           "DOCKER_EE_URL={{user `docker_ee_url`}}",
-          "DOCKER_UCP_IMAGE={{user `docker_ucp_image`}}"
+          "DOCKER_UCP_IMAGE={{user `docker_ucp_image`}}",
+          "DOCKER_UCP_PACKAGES={{user `docker_ucp_packages`}}"
       ],
       "scripts": [
          "scripts/apt.sh",