diff --git a/src/Proto/nodeguard.proto b/src/Proto/nodeguard.proto
index b054040a..59fe8629 100644
--- a/src/Proto/nodeguard.proto
+++ b/src/Proto/nodeguard.proto
@@ -132,6 +132,8 @@ message RequestWithdrawalRequest {
   FEES_TYPE mempool_fee_rate = 8;
   // Fee rate in sat/vbyte
   optional int32 custom_fee_rate = 9;
+  // External reference id for the withdrawal request
+  optional string reference_id = 10;
 }
 
 message RequestWithdrawalResponse {
diff --git a/src/Rpc/NodeGuardService.cs b/src/Rpc/NodeGuardService.cs
index 7421886a..6069f35f 100644
--- a/src/Rpc/NodeGuardService.cs
+++ b/src/Rpc/NodeGuardService.cs
@@ -228,7 +228,8 @@ public override async Task<RequestWithdrawalResponse> RequestWithdrawal(RequestW
                 RequestMetadata = request.RequestMetadata,
                 Changeless = request.Changeless,
                 MempoolRecommendedFeesType = (MempoolRecommendedFeesType)request.MempoolFeeRate,
-                CustomFeeRate = request.CustomFeeRate
+                CustomFeeRate = request.CustomFeeRate,
+                ReferenceId = request.ReferenceId
             };
 
             //Save withdrawal request