diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index 97531ad59cf35f8d443e040cb316aedda179668a..f47a60ee5dc34da490b16155143b43f326205b90 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -890,9 +890,9 @@ int access(const char *path, int amode)
 char *getcwd(char *buf, size_t size)
 {
 #ifdef DFS_USING_WORKDIR
-    rt_enter_critical();
+    dfs_lock();
     strncpy(buf, working_directory, size);
-    rt_exit_critical();
+    dfs_unlock();
 #else
     rt_kprintf(NO_WORKING_DIR);
 #endif