diff --git a/components/dfs/dfs_v2/src/dfs_posix.c b/components/dfs/dfs_v2/src/dfs_posix.c
index 5ce8024ae5..ef6e8e78e5 100644
--- a/components/dfs/dfs_v2/src/dfs_posix.c
+++ b/components/dfs/dfs_v2/src/dfs_posix.c
@@ -1180,6 +1180,7 @@ int chdir(const char *path)
         /* this is a not exist directory */
         dfs_unlock();
 
+        rt_set_errno(-ENOTDIR);
         return -1;
     }