diff --git a/src/Helpers/LightningHelper.cs b/src/Helpers/LightningHelper.cs
index ba93a382..5d0b0770 100644
--- a/src/Helpers/LightningHelper.cs
+++ b/src/Helpers/LightningHelper.cs
@@ -30,7 +30,7 @@ public static void RemoveDuplicateUTXOs(this UTXOChanges utxoChanges)
         /// <param name="selectedUtxOs"></param>
         /// <param name="multisigCoins"></param>
         /// <exception cref="ArgumentException"></exception>
-        public static void AddDerivationData(ILogger logger, IEnumerable<Key> keys , (PSBT?, bool) result, List<UTXO> selectedUtxOs,
+        public static (PSBT?, bool) AddDerivationData(ILogger logger, IEnumerable<Key> keys , (PSBT?, bool) result, List<UTXO> selectedUtxOs,
             List<ScriptCoin> multisigCoins)
         {
             if (logger == null) throw new ArgumentNullException(nameof(logger));
@@ -41,8 +41,9 @@ public static void AddDerivationData(ILogger logger, IEnumerable<Key> keys , (PS
             var nbXplorerNetwork = CurrentNetworkHelper.GetCurrentNetwork();
             foreach (var key in keys)
             {
+                if (string.IsNullOrWhiteSpace(key.MasterFingerprint) || string.IsNullOrWhiteSpace(key.XPUB)) continue;
+                
                 var bitcoinExtPubKey = new BitcoinExtPubKey(key.XPUB, nbXplorerNetwork);
-
                 var masterFingerprint = HDFingerprint.Parse(key.MasterFingerprint);
                 var rootedKeyPath = new RootedKeyPath(masterFingerprint, new KeyPath(key.Path));
 
@@ -74,6 +75,8 @@ public static void AddDerivationData(ILogger logger, IEnumerable<Key> keys , (PS
                     }
                 }
             }
+
+            return result;
         }
 
 
diff --git a/src/Services/BitcoinService.cs b/src/Services/BitcoinService.cs
index f825fa61..5ddc03f7 100644
--- a/src/Services/BitcoinService.cs
+++ b/src/Services/BitcoinService.cs
@@ -195,7 +195,7 @@ public BitcoinService(ILogger<BitcoinService> logger,
                 result.Item1 = builder.BuildPSBT(false);
                 
                 //Additional fields to support PSBT signing with a HW or the Remote Signer 
-                LightningHelper.AddDerivationData(_logger,walletWithdrawalRequest.Wallet.Keys, result, selectedUTXOs, scriptCoins);
+                result = LightningHelper.AddDerivationData(_logger,walletWithdrawalRequest.Wallet.Keys, result, selectedUTXOs, scriptCoins);
             }
             catch (Exception e)
             {
diff --git a/src/Services/LightningService.cs b/src/Services/LightningService.cs
index cc216aac..1fb3e4a3 100644
--- a/src/Services/LightningService.cs
+++ b/src/Services/LightningService.cs
@@ -830,7 +830,7 @@ private void CancelPendingChannel(Node source, Lightning.LightningClient client,
                 }
 
                 //Additional fields to support PSBT signing with a HW or the Remote Signer 
-                LightningHelper.AddDerivationData(_logger,channelOperationRequest.Wallet.Keys, result, selectedUtxOs, multisigCoins);
+                result = LightningHelper.AddDerivationData(_logger,channelOperationRequest.Wallet.Keys, result, selectedUtxOs, multisigCoins);
             }
             catch (Exception e)
             {