diff --git a/compiler/rustc_smir/src/stable_mir/ty.rs b/compiler/rustc_smir/src/stable_mir/ty.rs
index 1db6b1e3d28eb..37c6be39a6410 100644
--- a/compiler/rustc_smir/src/stable_mir/ty.rs
+++ b/compiler/rustc_smir/src/stable_mir/ty.rs
@@ -1,9 +1,16 @@
 use super::{mir::Mutability, mir::Safety, with, AllocId, DefId};
 use crate::rustc_internal::Opaque;
+use std::fmt::{self, Debug, Formatter};
 
-#[derive(Copy, Clone, Debug)]
+#[derive(Copy, Clone)]
 pub struct Ty(pub usize);
 
+impl Debug for Ty {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        f.debug_struct("Ty").field("id", &self.0).field("kind", &self.kind()).finish()
+    }
+}
+
 impl Ty {
     pub fn kind(&self) -> TyKind {
         with(|context| context.ty_kind(*self))