diff --git a/framework/FileSystem.h b/framework/FileSystem.h
index d718888..cae616c 100644
--- a/framework/FileSystem.h
+++ b/framework/FileSystem.h
@@ -29,6 +29,8 @@ If you have questions concerning this license or the applicable additional terms
 #ifndef __FILESYSTEM_H__
 #define __FILESYSTEM_H__
 
+#include <limits.h>
+
 #include "idlib/containers/StrList.h"
 #include "framework/File.h"
 
@@ -55,9 +57,9 @@ If you have questions concerning this license or the applicable additional terms
 ===============================================================================
 */
 
-static const ID_TIME_T		FILE_NOT_FOUND_TIMESTAMP	= 0xFFFFFFFF;
+static const ID_TIME_T	FILE_NOT_FOUND_TIMESTAMP	= 0xFFFFFFFF;
 static const int		MAX_PURE_PAKS				= 128;
-static const int		MAX_OSPATH					= 256;
+static const int		MAX_OSPATH					= PATH_MAX;
 
 // modes for OpenFileByMode. used as bit mask internally
 typedef enum {