diff --git a/common/client-libs/gateway-client/src/socket_state.rs b/common/client-libs/gateway-client/src/socket_state.rs
index 6f82ef4939..421e8c4c92 100644
--- a/common/client-libs/gateway-client/src/socket_state.rs
+++ b/common/client-libs/gateway-client/src/socket_state.rs
@@ -74,7 +74,7 @@ impl PartiallyDelegated {
 
     fn route_socket_messages(
         ws_msgs: Vec<Message>,
-        packet_router: &mut PacketRouter,
+        packet_router: &PacketRouter,
         shared_key: &SharedKeys,
     ) -> Result<(), GatewayClientError> {
         let plaintexts = Self::recover_received_plaintexts(ws_msgs, shared_key);