diff --git a/remote.go b/remote.go
index 653b5f4..5004099 100644
--- a/remote.go
+++ b/remote.go
@@ -69,6 +69,7 @@ func newRequest(method string, url string, data []byte) (*http.Request, error) {
 		return nil, err
 	}
 	request.Header.Add("Accept", jsonContentType)
+	request.Header.Add("Content-Type", jsonContentType)
 
 	return request, nil
 }