diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs
index 8cc5cda59ab0..c5eeb8b1aa85 100644
--- a/compiler/rustc_mir_build/src/thir/cx/expr.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs
@@ -807,7 +807,7 @@ fn make_mirror_unadjusted(&mut self, expr: &'tcx hir::Expr<'tcx>) -> Expr<'tcx>
                     user_ty: None,
                 };
                 let mk_usize_kind = |val: u64| ExprKind::NonHirLiteral {
-                    lit: ScalarInt::try_from_uint(val, tcx.data_layout.pointer_size()).unwrap(),
+                    lit: ScalarInt::try_from_target_usize(val, tcx).unwrap(),
                     user_ty: None,
                 };
                 let mk_call =