diff --git a/compiler/rustc_monomorphize/src/errors.rs b/compiler/rustc_monomorphize/src/errors.rs
index fa7655f2624..c53ef20c7f8 100644
--- a/compiler/rustc_monomorphize/src/errors.rs
+++ b/compiler/rustc_monomorphize/src/errors.rs
@@ -3,7 +3,6 @@ use std::path::PathBuf;
 use rustc_errors::ErrorGuaranteed;
 use rustc_macros::{LintDiagnostic, SessionDiagnostic};
 use rustc_session::SessionDiagnostic;
-// use rustc_session::SessionDiagnostic;
 use rustc_span::Span;
 
 #[derive(SessionDiagnostic)]