diff --git a/src/webclient_file.c b/src/webclient_file.c
index b8cf86a..d5b29a0 100644
--- a/src/webclient_file.c
+++ b/src/webclient_file.c
@@ -15,7 +15,8 @@
 #include <webclient.h>
 
 #ifdef RT_USING_DFS
-#include <dfs_posix.h>
+#include <unistd.h>
+#include <fcntl.h>
 
 #define DBG_ENABLE
 #define DBG_SECTION_NAME               "web.file"