diff --git a/Plugins/BTCPayServer.Plugins.Breez/BreezLightningClient.cs b/Plugins/BTCPayServer.Plugins.Breez/BreezLightningClient.cs
index fce4fd5..b192101 100644
--- a/Plugins/BTCPayServer.Plugins.Breez/BreezLightningClient.cs
+++ b/Plugins/BTCPayServer.Plugins.Breez/BreezLightningClient.cs
@@ -39,8 +39,8 @@ public class BreezLightningClient : ILightningClient, IDisposable
             apiKey = apiKey
         };
 
-        var seed = mnemonic.DeriveSeed();
-        var sdk = await BreezSdkSparkMethods.Connect(new ConnectRequest(config, seed.ToList(), workingDir));
+        var seed = new Seed.Mnemonic(mnemonic: mnemonic.ToString(), passphrase: null);
+        var sdk = await BreezSdkSparkMethods.Connect(new ConnectRequest(config, seed, workingDir));
 
         return new BreezLightningClient(sdk, network, paymentKey);
     }