1 files changed, 1 insertions, 1 deletions
diff --git a/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs b/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs
index bb1316525..19d2fe956 100644
--- a/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs
+++ b/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs
@@ -117,7 +117,7 @@ impl ChildBySource for ItemScope {
                 let adt = ast_id.to_node(db.upcast());
                 calls.for_each(|(attr_id, call_id, calls)| {
                     if let Some(Either::Left(attr)) =
-                        adt.doc_comments_and_attrs().nth(attr_id.ast_index as usize)
+                        adt.doc_comments_and_attrs().nth(attr_id.ast_index())
                     {
                         res[keys::DERIVE_MACRO_CALL].insert(attr, (attr_id, call_id, calls.into()));
                     }