diff --git a/src/core/Directory.cpp b/src/core/Directory.cpp
index 046c999d..05344065 100644
--- a/src/core/Directory.cpp
+++ b/src/core/Directory.cpp
@@ -31,7 +31,7 @@ bool
 CDirectory::WriteDirFile(const char *filename)
 {
 	int fd;
-	ssize_t n;
+	size_t n;
 	fd = CFileMgr::OpenFileForWriting(filename);
 	n = CFileMgr::Write(fd, (char*)entries, numEntries*sizeof(DirectoryInfo));
 	CFileMgr::CloseFile(fd);