diff --git a/components/libc/dlib/syscall_close.c b/components/libc/dlib/syscall_close.c
index 5792bb3806..c2bb0b63d6 100644
--- a/components/libc/dlib/syscall_close.c
+++ b/components/libc/dlib/syscall_close.c
@@ -36,7 +36,7 @@ int __close(int handle)
         return _LLIO_ERROR;
 
 #ifdef RT_USING_DFS
-    return close(handle);
+    return close(handle - _LLIO_STDERR - 1);
 #else
     return 0;
 #endif
diff --git a/components/libc/dlib/syscall_lseek.c b/components/libc/dlib/syscall_lseek.c
index 950ba52f65..23d509817e 100644
--- a/components/libc/dlib/syscall_lseek.c
+++ b/components/libc/dlib/syscall_lseek.c
@@ -36,7 +36,7 @@ long __lseek(int handle, long offset, int whence)
         return _LLIO_ERROR;
 
 #ifdef RT_USING_DFS
-    return lseek(handle, offset, whence);
+    return lseek(handle - _LLIO_STDERR - 1, offset, whence);
 #else
     return _LLIO_ERROR;
 #endif