diff --git a/centos-7/template.json b/centos-7/template.json
index e29a302..10a8277 100644
--- a/centos-7/template.json
+++ b/centos-7/template.json
@@ -56,7 +56,8 @@
     {
       "type": "vagrant",
       "keep_input_artifact": true,
-      "output": "images/{{ user `distro` }}-{{.Provider}}-{{ timestamp }}.box"
+      "output": "images/{{ user `distro` }}-{{.Provider}}-{{ timestamp }}.box",
+      "except": [ "docker" ]
     },
     {
       "type": "docker-tag",