diff --git a/fcm.go b/fcm.go
index c1cee13..4eb0751 100644
--- a/fcm.go
+++ b/fcm.go
@@ -79,9 +79,6 @@ func ReadCredentialsFromFile(filename string) (Credentials, error) {
 	return c, nil
 }
 
-type ClientConfig struct {
-}
-
 type Client struct {
 	sendEndpoint string
 	ts           oauth2.TokenSource
@@ -89,7 +86,7 @@ type Client struct {
 	logger       logr.Logger
 }
 
-func NewClient(projectId string, cfg ClientConfig, ts oauth2.TokenSource, hc *http.Client, logger logr.Logger) *Client {
+func NewClient(projectId string, ts oauth2.TokenSource, hc *http.Client, logger logr.Logger) *Client {
 	return &Client{
 		sendEndpoint: MakeSendEndpoint(projectId),
 		ts:           ts,