diff --git a/specs.json b/specs.json
index 5b5fe96..7847fab 100644
--- a/specs.json
+++ b/specs.json
@@ -235,7 +235,8 @@
       "timeout": "number",
       "proxy": "string",
       "transcribe": "#transcribe",
-      "amd": "#amd"
+      "amd": "#amd",
+      "tag": "object"
     },
     "required": [
       "target"