diff --git a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs b/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs
index 02353b55..d70592d6 100644
--- a/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs
+++ b/v2rayN/v2rayN/HttpProxyHandler/HttpWebServer.cs
@@ -39,6 +39,7 @@ namespace v2rayN.HttpProxyHandler
             catch (Exception ex)
             {
                 Utils.SaveLog(ex.Message, ex);
+                throw;
             }
         }