diff --git a/compiler/rustc_privacy/src/errors.rs b/compiler/rustc_privacy/src/errors.rs
index d8d4ef8289cc4..bca9c7325b03c 100644
--- a/compiler/rustc_privacy/src/errors.rs
+++ b/compiler/rustc_privacy/src/errors.rs
@@ -58,7 +58,7 @@ pub struct InPublicInterface<'a> {
     pub descr: DiagnosticArgFromDisplay<'a>,
     #[label(privacy_visibility_label)]
     pub vis_span: Span,
-    #[suggestion(code="", applicability = "maybe-incorrect")]
+    #[suggestion(code = "", applicability = "maybe-incorrect")]
     pub suggestion: Span,
 }