1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs
index 30597944124..4bbe212f429 100644
--- a/compiler/rustc_builtin_macros/src/errors.rs
+++ b/compiler/rustc_builtin_macros/src/errors.rs
@@ -203,6 +203,14 @@ mod autodiff {
     }
 
     #[derive(Diagnostic)]
+    #[diag(builtin_macros_autodiff_width)]
+    pub(crate) struct AutoDiffInvalidWidth {
+        #[primary_span]
+        pub(crate) span: Span,
+        pub(crate) width: u128,
+    }
+
+    #[derive(Diagnostic)]
     #[diag(builtin_macros_autodiff)]
     pub(crate) struct AutoDiffInvalidApplication {
         #[primary_span]