diff --git a/auth.go b/auth.go
index 248a1fd..ceaf9ae 100644
--- a/auth.go
+++ b/auth.go
@@ -19,6 +19,7 @@ func New_Auth(email, password string) (*Response, error) {
       "Email": {email},
       "Passwd": {password},
       "client_sig": {""},
+      // wikipedia.org/wiki/URL_encoding#Types_of_URI_characters
       "droidguard_results": {"-"},
    }.Encode()
    req, err := http.NewRequest(