diff --git a/auth.go b/auth.go
index 54740ef5..58b40e39 100644
--- a/auth.go
+++ b/auth.go
@@ -84,7 +84,9 @@ func printToken(c *RequestContext, w http.ResponseWriter) (int, error) {
 		return http.StatusInternalServerError, err
 	}
 
+
 	// Writes the token.
+	w.Header().Set("Content-Type", "cty")
 	w.Write([]byte(string))
 	return 0, nil
 }