diff --git a/compiler/rustc_middle/src/thir.rs b/compiler/rustc_middle/src/thir.rs
index c5d0892dde910..0f2504e3d9afe 100644
--- a/compiler/rustc_middle/src/thir.rs
+++ b/compiler/rustc_middle/src/thir.rs
@@ -808,6 +808,9 @@ mod size_asserts {
     // These are in alphabetical order, which is easy to maintain.
     static_assert_size!(Block, 56);
     static_assert_size!(Expr<'_>, 64);
+    static_assert_size!(ExprKind<'_>, 40);
     static_assert_size!(Pat<'_>, 24);
+    static_assert_size!(PatKind<'_>, 112);
     static_assert_size!(Stmt<'_>, 72);
+    static_assert_size!(StmtKind<'_>, 64);
 }