diff --git a/ftk/src/ftkfsys.cpp b/ftk/src/ftkfsys.cpp
index 93eeb2e..029c7dd 100644
--- a/ftk/src/ftkfsys.cpp
+++ b/ftk/src/ftkfsys.cpp
@@ -2448,7 +2448,7 @@ RCODE FLMAPI f_filetobuf(
 	
 	if( !ui64FileSize)
 	{
-		*pszBuffer = NULL;
+		*ppszBuffer = NULL;
 		goto Exit;
 	}