diff --git a/specs/bundles/v0.1.md b/specs/bundles/v0.1.md
index 9a756cb..d8ff691 100644
--- a/specs/bundles/v0.1.md
+++ b/specs/bundles/v0.1.md
@@ -50,7 +50,8 @@ type requestBody = {
                 "contract_address" |
                 "logs" |
                 "function_selector" |
-                "hash"
+                "hash" |
+                "tx_hash"
             >,
             builders?: Array<string>,
         },