From 7d14cd74f2cf31be1e1bf9bfe1d6ca7253e3668d Mon Sep 17 00:00:00 2001
From: d11n <mail@dennisreimann.de>
Date: Mon, 17 Apr 2023 00:08:40 +0200
Subject: [PATCH] LightningLikePaymentData: Null-check preimage (#4886)

Fixes #4884.
---
 BTCPayServer/Payments/Lightning/LightningLikePaymentData.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BTCPayServer/Payments/Lightning/LightningLikePaymentData.cs b/BTCPayServer/Payments/Lightning/LightningLikePaymentData.cs
index 1ee352414..403c0e9ae 100644
--- a/BTCPayServer/Payments/Lightning/LightningLikePaymentData.cs
+++ b/BTCPayServer/Payments/Lightning/LightningLikePaymentData.cs
@@ -66,7 +66,7 @@ namespace BTCPayServer.Payments.Lightning
 
         public string GetPaymentProof()
         {
-            return Preimage.ToString();
+            return Preimage?.ToString();
         }
     }
 }