diff --git a/xvaga/agasys.cpp b/xvaga/agasys.cpp
index 8e9f945d7..b087e3f74 100755
--- a/xvaga/agasys.cpp
+++ b/xvaga/agasys.cpp
@@ -102,7 +102,8 @@ bool aga_unzip(const char* zipfile, const char* destdir)
 		wxZipInputStream fin(zipfile, strFileName);
 
 		wxString strOutFile = destdir;
-		strOutFile += '/';
+    if (!wxEndsWithPathSeparator(strOutFile))
+		  strOutFile += wxFILE_SEP_PATH;
 		strOutFile += strFileName;
 
 		wxString strPath;