diff --git a/nuttx/configs/haltian-tsone/include/nsh_romfsimg.h b/nuttx/configs/haltian-tsone/include/nsh_romfsimg.h
index 1ac29e9598f17032b21d9ca1bc279f2563b8b56c..090d761738d4d9a089c8fa94854b7563d31ba85b 100644
--- a/nuttx/configs/haltian-tsone/include/nsh_romfsimg.h
+++ b/nuttx/configs/haltian-tsone/include/nsh_romfsimg.h
@@ -86,4 +86,4 @@ const unsigned char romfs_img[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00
 };
-unsigned int romfs_img_len = 1024;
+static const unsigned int romfs_img_len = 1024;