diff --git a/zenith-openrpc.json b/zenith-openrpc.json
index a8cd4ec..09cb535 100644
--- a/zenith-openrpc.json
+++ b/zenith-openrpc.json
@@ -597,9 +597,7 @@
       "tags": [{"$ref": "#/components/tags/draft"},{"$ref": "#/components/tags/wip"}],
       "params": [
         { "$ref": "#/components/contentDescriptors/AccountId"},
-        { "name": "Transaction requests",
-          "schema": { "$ref": "#/components/contentDescriptors/TxRequest"}
-        }
+        { "$ref": "#/components/contentDescriptors/TxRequestArray"}
       ],
       "paramStructure": "by-position",
       "result": {