diff --git a/boto3/data/dynamodb/2012-08-10/resources-1.json b/boto3/data/dynamodb/2012-08-10/resources-1.json
index b79994e224..e285c8afd0 100644
--- a/boto3/data/dynamodb/2012-08-10/resources-1.json
+++ b/boto3/data/dynamodb/2012-08-10/resources-1.json
@@ -16,6 +16,9 @@
           ],
           "path": "TableDescription"
         }
+      },
+      "TransactWriteItems": {
+        "request": { "operation": "TransactWriteItems" }
       }
     },
     "has": {