diff --git a/schema_galaxies.json b/schema_galaxies.json
index 023a883..494b479 100644
--- a/schema_galaxies.json
+++ b/schema_galaxies.json
@@ -25,6 +25,9 @@
     },
     "namespace": {
       "type": "string"
+    },
+    "kill_chain_order": {
+      "type": "object"
     }
   },
   "required": [