diff --git a/internal/web/web.go b/internal/web/web.go
index c5ff90b..fba7d1d 100644
--- a/internal/web/web.go
+++ b/internal/web/web.go
@@ -193,13 +193,13 @@ func getShareHead(client *client.Client, w http.ResponseWriter, r *http.Request)
 }
 
 func checkAuth(w http.ResponseWriter, r *http.Request, username, password string) bool {
-	username, password, ok := r.BasicAuth()
+	authUsername, authPassword, ok := r.BasicAuth()
 	if !ok {
 		w.WriteHeader(http.StatusUnauthorized)
 		return false
 	}
 
-	if username != username || password != password {
+	if username != authUsername || password != authPassword {
 		w.WriteHeader(http.StatusUnauthorized)
 		return false
 	}