diff --git a/Include/7zpp/SevenZipCompressor.h b/Include/7zpp/SevenZipCompressor.h
index 98b67aa..928a3c6 100644
--- a/Include/7zpp/SevenZipCompressor.h
+++ b/Include/7zpp/SevenZipCompressor.h
@@ -33,7 +33,7 @@ namespace SevenZip
 		virtual bool CompressFile( const TString& filePath, ProgressCallback* callback);
 
 	private:
-
+		TString m_outputPath;					//the final compression result compression path. Used for tracking in callbacks
 		CComPtr< IStream > OpenArchiveStream();
 		bool FindAndCompressFiles(	const TString& directory, const TString& searchPattern, 
 									const TString& pathPrefix, bool recursion, ProgressCallback* callback);