diff --git a/extra/specifications/schemas/direct-url.schema.json b/extra/specifications/schemas/direct-url.schema.json
index d1f4c860af..1e110b193f 100644
--- a/extra/specifications/schemas/direct-url.schema.json
+++ b/extra/specifications/schemas/direct-url.schema.json
@@ -8,6 +8,9 @@
       "type": "string",
       "format": "uri"
     },
+    "subdirectory": {
+      "type": "string"
+    },
     "DirInfo": {
       "type": "object",
       "properties": {
@@ -60,6 +63,9 @@
       "properties": {
         "url": {
           "$ref": "#/definitions/url"
+        },
+        "subdirectory": {
+          "$ref": "#/definitions/subdirectory"
         }
       },
       "required": ["url"]