diff --git a/expkg/src/EXPKG/EXPKG.cpp b/expkg/src/EXPKG/EXPKG.cpp
index 7e3432a..ce66153 100644
--- a/expkg/src/EXPKG/EXPKG.cpp
+++ b/expkg/src/EXPKG/EXPKG.cpp
@@ -331,7 +331,7 @@ example:
 
             // return ImageResult
             // data format
-            std::filesystem::path outPath = m_OutDir / m_Reader->GetFileName();
+            std::filesystem::path outPath = reader->GetFileName();
             outPath.replace_extension(GetFileExtension(format));
 
             std::cout << "convert file: " << outPath << std::endl;