diff --git a/README.md b/README.md
index 07479e55dc983cf8fac9a4a16e8f93d391ebdff0..7d392c6c1f4bcc0c3bc94c585c85ca66acc321d6 100644
--- a/README.md
+++ b/README.md
@@ -123,5 +123,5 @@ In addition, `shell` supports some shortcut keys as below:
 - [X] Steady keyboard input(k210)
 
 ## TODO
-Fix the bugs of U-mode exception caught by RUSTSBI.
+Fix the bugs of U-mode exception on k210.