diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs
index 908ff3da5ca0b..31e20d7e70993 100644
--- a/compiler/rustc_borrowck/src/type_check/mod.rs
+++ b/compiler/rustc_borrowck/src/type_check/mod.rs
@@ -477,9 +477,7 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> {
 
     fn visit_body(&mut self, body: &Body<'tcx>) {
         self.sanitize_type(&"return type", body.return_ty());
-        for local_decl in &body.local_decls {
-            self.sanitize_type(local_decl, local_decl.ty);
-        }
+        // The types of local_decls are checked above which is called in super_body.
         self.super_body(body);
     }
 }