diff --git a/kernel/src/device/tdxguest/mod.rs b/kernel/src/device/tdxguest/mod.rs
index d8f80b129..5e80f861a 100644
--- a/kernel/src/device/tdxguest/mod.rs
+++ b/kernel/src/device/tdxguest/mod.rs
@@ -8,7 +8,7 @@ use crate::{
     error::Error,
     events::IoEvents,
     fs::{inode_handle::FileIo, utils::IoctlCmd},
-    process::signal::Poller,
+    process::signal::{Pollable, Poller},
 };
 
 const TDX_REPORTDATA_LEN: usize = 64;