diff --git a/bitcoin/src/hash_types.rs b/bitcoin/src/hash_types.rs
index b8b28cce..edcbd98a 100644
--- a/bitcoin/src/hash_types.rs
+++ b/bitcoin/src/hash_types.rs
@@ -69,7 +69,6 @@ See [`hashes::Hash::DISPLAY_BACKWARD`] for more details.
     impl_hashencode!(Txid);
     impl_hashencode!(Wtxid);
     impl_hashencode!(BlockHash);
-    impl_hashencode!(Sighash);
 
     impl_hashencode!(TxMerkleNode);
     impl_hashencode!(WitnessMerkleNode);
diff --git a/bitcoin/src/sighash.rs b/bitcoin/src/sighash.rs
index 27495279..961ba497 100644
--- a/bitcoin/src/sighash.rs
+++ b/bitcoin/src/sighash.rs
@@ -729,9 +729,10 @@ impl<R: Deref<Target = Transaction>> SighashCache<R> {
         } else if sighash == EcdsaSighashType::Single && input_index < self.tx.output.len() {
             let mut single_enc = Sighash::engine();
             self.tx.output[input_index].consensus_encode(&mut single_enc)?;
-            Sighash::from_engine(single_enc).consensus_encode(&mut writer)?;
+            let hash = Sighash::from_engine(single_enc);
+            writer.write_all(&hash[..])?;
         } else {
-            zero_hash.consensus_encode(&mut writer)?;
+            writer.write_all(&zero_hash[..])?;
         }
 
         self.tx.lock_time.consensus_encode(&mut writer)?;