diff --git a/cmd/clientsim/main.go b/cmd/clientsim/main.go
index a446ce8..5249405 100644
--- a/cmd/clientsim/main.go
+++ b/cmd/clientsim/main.go
@@ -187,7 +187,7 @@ type ClientHandler struct {
 	logger *logrus.Logger
 }
 
-func (c ClientHandler) Send(command *protocol.Command, out chan []byte) error {
+func (c *ClientHandler) Send(command *protocol.Command, out chan []byte) error {
 	var (
 		frame []byte
 		err   error
@@ -216,7 +216,7 @@ func (c ClientHandler) Send(command *protocol.Command, out chan []byte) error {
 	return nil
 }
 
-func (c ClientHandler) ResponseAnnounce(in chan []byte) (*protocol.Response, error) {
+func (c *ClientHandler) ResponseAnnounce(in chan []byte) (*protocol.Response, error) {
 	response := &protocol.Response{}
 
 	var announce messages.ResponseAnnounce
@@ -237,7 +237,7 @@ func (c ClientHandler) ResponseAnnounce(in chan []byte) (*protocol.Response, err
 	}
 }
 
-func (c ClientHandler) ResponseData(in chan []byte, response *protocol.Response) error {
+func (c *ClientHandler) ResponseData(in chan []byte, response *protocol.Response) error {
 	select {
 	case frame := <-in:
 		switch response.Announce.Code {
@@ -265,7 +265,7 @@ func (c ClientHandler) ResponseData(in chan []byte, response *protocol.Response)
 	return nil
 }
 
-func (c ClientHandler) HandleResponse(response *protocol.Response) error {
+func (c *ClientHandler) HandleResponse(response *protocol.Response) error {
 	c.logger.WithField("response", response.Announce).Info("handled response")
 	c.logger.WithField("response", response).Debug("full response")