diff --git a/gen/rust/src/logoschat/reliability/logoschat.reliability.rs b/gen/rust/src/logoschat/reliability/logoschat.reliability.rs
index 36f2e46..89ddddd 100644
--- a/gen/rust/src/logoschat/reliability/logoschat.reliability.rs
+++ b/gen/rust/src/logoschat/reliability/logoschat.reliability.rs
@@ -9,9 +9,14 @@ pub struct HistoryEntry {
     /// Unique identifier of the SDS message, as defined in `Message`
     #[prost(string, tag="1")]
     pub message_id: ::prost::alloc::string::String,
-    /// Optional information to help remote parties retrieve this SDS 
+    /// Optional information to help remote parties retrieve this SDS
     #[prost(bytes="bytes", tag="2")]
     pub retrieval_hint: ::prost::bytes::Bytes,
+    /// message; For example, A Waku deterministic message hash or routing payload hash
+    ///
+    /// Original message sender's participant ID (routing hint)
+    #[prost(string, tag="3")]
+    pub sender_id: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ReliablePayload {
@@ -28,5 +33,8 @@ pub struct ReliablePayload {
     /// Optional field causes errors in nim protobuf generation. Removing for now as optional is implied anways.
     #[prost(bytes="bytes", tag="20")]
     pub content: ::prost::bytes::Bytes,
+    /// Original message sender's participant ID (routing hint)
+    #[prost(string, tag="7")]
+    pub sender_id: ::prost::alloc::string::String,
 }
 // @@protoc_insertion_point(module)
diff --git a/protos/reliability.proto b/protos/reliability.proto
index 6c49105..8ac77dd 100644
--- a/protos/reliability.proto
+++ b/protos/reliability.proto
@@ -8,16 +8,18 @@ package logoschat.reliability;
 
 message HistoryEntry {
     string message_id = 1;        // Unique identifier of the SDS message, as defined in `Message`
-    bytes retrieval_hint = 2;     // Optional information to help remote parties retrieve this SDS 
+    bytes retrieval_hint = 2;     // Optional information to help remote parties retrieve this SDS
                                   // message; For example, A Waku deterministic message hash or routing payload hash
+    string sender_id = 3;         // Original message sender's participant ID (routing hint)
   }
-  
+
   message ReliablePayload {
-      string message_id = 2;      
-      string channel_id = 3;  
-      int32 lamport_timestamp = 10;    
-      repeated HistoryEntry causal_history = 11;   
-      bytes bloom_filter = 12; 
+      string message_id = 2;
+      string channel_id = 3;
+      int32 lamport_timestamp = 10;
+      repeated HistoryEntry causal_history = 11;
+      bytes bloom_filter = 12;
       // Optional field causes errors in nim protobuf generation. Removing for now as optional is implied anways.
-      bytes content = 20;                           
+      bytes content = 20;
+      string sender_id = 7;       // Original message sender's participant ID (routing hint)
   }