diff --git a/bitcoin_client_rs/Cargo.toml b/bitcoin_client_rs/Cargo.toml
index d68b72bd3..cb3325f15 100644
--- a/bitcoin_client_rs/Cargo.toml
+++ b/bitcoin_client_rs/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ledger_bitcoin_client"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["Edouard Paris <m@edouard.paris>"]
 edition = "2018"
 description = "Ledger Bitcoin application client"
diff --git a/bitcoin_client_rs/src/psbt.rs b/bitcoin_client_rs/src/psbt.rs
index fabfb250a..8708a64e9 100644
--- a/bitcoin_client_rs/src/psbt.rs
+++ b/bitcoin_client_rs/src/psbt.rs
@@ -411,13 +411,13 @@ impl PartialSignature {
                 .map_err(PartialSignatureError::XOnlyPubKey)?;
             let tap_leaf_hash =
                 TapLeafHash::from_slice(&slice[33..65]).map_err(PartialSignatureError::TapLeaf)?;
-            let sig = taproot::Signature::from_slice(&slice[65..])
+            let sig = taproot::Signature::from_slice(&slice[key_augment_len + 1..])
                 .map_err(PartialSignatureError::TaprootSig)?;
             Ok(Self::TapScriptSig(key, Some(tap_leaf_hash), sig))
         } else if key_augment_len == 32 {
             let key = XOnlyPublicKey::from_slice(&slice[1..33])
                 .map_err(PartialSignatureError::XOnlyPubKey)?;
-            let sig = taproot::Signature::from_slice(&slice[65..])
+            let sig = taproot::Signature::from_slice(&slice[key_augment_len + 1..])
                 .map_err(PartialSignatureError::TaprootSig)?;
             Ok(Self::TapScriptSig(key, None, sig))
         } else {