From 325a7b7b45567c3b4e38abe925fcab9f75ecc226 Mon Sep 17 00:00:00 2001
From: jmhrpr <harper.jme@gmail.com>
Date: Thu, 15 Dec 2022 17:17:36 +0000
Subject: [PATCH] fix: correct V1 to_plutus_data() for txout with no datum hash

---
 CHANGELOG.md                         | 1 +
 crates/uplc/src/tx/to_plutus_data.rs | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a86bd3af..8f5da849 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@
 ### Changed
 
 - **aiken**: `check` now also runs and reports on any `test` found in the project
+- **aiken**: fix Plutus V1 `to_plutus_data()` for post-alonzo txout with no datum hash
 
 ### Removed
 
diff --git a/crates/uplc/src/tx/to_plutus_data.rs b/crates/uplc/src/tx/to_plutus_data.rs
index e8aea41d..3ed82396 100644
--- a/crates/uplc/src/tx/to_plutus_data.rs
+++ b/crates/uplc/src/tx/to_plutus_data.rs
@@ -296,7 +296,7 @@ impl ToPlutusData for TxOut {
                         post_alonzo_output.value.to_plutus_data(),
                         match post_alonzo_output.datum_option {
                             Some(DatumOption::Hash(hash)) => Some(hash).to_plutus_data(),
-                            _ => None::<DatumOption>.to_plutus_data(),
+                            _ => None::<Option<Hash<32>>>.to_plutus_data(),
                         },
                     ],
                 ),