diff --git a/fcm.go b/fcm.go
index 56d4c53..29ab4ab 100644
--- a/fcm.go
+++ b/fcm.go
@@ -102,7 +102,7 @@ func NewClient(cfg ClientConfig, ts oauth2.TokenSource, hc *http.Client, logger
 	}
 }
 
-func (c *Client) SendMessage(msg Message) (SendResponse, error) {
+func (c *Client) SendMessage(ctx context.Context, msg Message) (SendResponse, error) {
 	sendRequest := SendRequest{
 		ValidateOnly: false,
 		Message:      msg,