diff --git a/service-providers/ip-packet-router/src/mixnet_listener.rs b/service-providers/ip-packet-router/src/mixnet_listener.rs
index 4e41f3d996..f835d1d526 100644
--- a/service-providers/ip-packet-router/src/mixnet_listener.rs
+++ b/service-providers/ip-packet-router/src/mixnet_listener.rs
@@ -605,7 +605,7 @@ impl MixnetListener {
 
     // When an incoming mixnet message triggers a response that we send back, such as during
     // connect handshake.
-    async fn handle_response(&self, response: IpPacketResponse) -> Result<()> {
+    async fn handle_response(&mut self, response: IpPacketResponse) -> Result<()> {
         let Some(recipient) = response.recipient() else {
             log::error!("No recipient in response packet, this should NOT happen!");
             return Err(IpPacketRouterError::NoRecipientInResponse);
@@ -635,7 +635,7 @@ impl MixnetListener {
 
     // A single incoming request can trigger multiple responses, such as when data requests contain
     // multiple IP packets.
-    async fn handle_responses(&self, responses: Vec<PacketHandleResult>) {
+    async fn handle_responses(&mut self, responses: Vec<PacketHandleResult>) {
         for response in responses {
             match response {
                 Ok(Some(response)) => {