diff --git a/src/BTCPayServer.Lightning.Common/PayResponse.cs b/src/BTCPayServer.Lightning.Common/PayResponse.cs
index 73cf2615..6ec1086d 100644
--- a/src/BTCPayServer.Lightning.Common/PayResponse.cs
+++ b/src/BTCPayServer.Lightning.Common/PayResponse.cs
@@ -56,5 +56,7 @@ public class PayDetails
         
         [JsonConverter(typeof(NBitcoin.JsonConverters.UInt256JsonConverter))]
         public uint256 PaymentHash { get; set; }
+
+        public string Message { get; set; }
     }
 }