diff --git a/src/Luban.Client/Source/Utils/FileCleaner.cs b/src/Luban.Client/Source/Utils/FileCleaner.cs
index 10e5640..bec6891 100644
--- a/src/Luban.Client/Source/Utils/FileCleaner.cs
+++ b/src/Luban.Client/Source/Utils/FileCleaner.cs
@@ -21,6 +21,7 @@ namespace Luban.Client.Common.Utils
 
         public void AddOutputDir(string dir)
         {
+            dir = dir.TrimEnd('/', '\\');
             _outputDirs.Add(dir);
         }