diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs
index 642a618e1867..da75238bacd5 100644
--- a/compiler/rustc_resolve/src/build_reduced_graph.rs
+++ b/compiler/rustc_resolve/src/build_reduced_graph.rs
@@ -1277,7 +1277,7 @@ fn insert_unused_macro(&mut self, ident: Ident, def_id: LocalDefId, node_id: Nod
         if !ident.as_str().starts_with('_') {
             self.r.unused_macros.insert(def_id, (node_id, ident));
             let nrules = self.r.local_macro_map[&def_id].nrules;
-            self.r.unused_macro_rules.insert(node_id, DenseBitSet::new_filled(nrules));
+            self.r.unused_macro_rules.insert(node_id, (def_id, DenseBitSet::new_filled(nrules)));
         }
     }
 
diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs
index 25cb4659758d..6f777984e6c0 100644
--- a/compiler/rustc_resolve/src/lib.rs
+++ b/compiler/rustc_resolve/src/lib.rs
@@ -1405,8 +1405,8 @@ pub struct Resolver<'ra, 'tcx> {
     local_macro_def_scopes: FxHashMap<LocalDefId, LocalModule<'ra>> = default::fx_hash_map(),
     ast_transform_scopes: FxHashMap<LocalExpnId, LocalModule<'ra>> = default::fx_hash_map(),
     unused_macros: FxIndexMap<LocalDefId, (NodeId, Ident)>,
-    /// A map from the macro to all its potentially unused arms.
-    unused_macro_rules: FxIndexMap<NodeId, DenseBitSet<usize>>,
+    /// A map from the macro to all its potentially unused arms and the `LocalDefId` of the macro itself.
+    unused_macro_rules: FxIndexMap<NodeId, (LocalDefId, DenseBitSet<usize>)>,
     proc_macro_stubs: FxHashSet<LocalDefId> = default::fx_hash_set(),
     /// Traces collected during macro resolution and validated when it's complete.
     single_segment_macro_resolutions:
diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs
index d4349b9d73a7..27390c0394d2 100644
--- a/compiler/rustc_resolve/src/macros.rs
+++ b/compiler/rustc_resolve/src/macros.rs
@@ -339,7 +339,7 @@ fn resolve_macro_invocation(
     }
 
     fn record_macro_rule_usage(&mut self, id: NodeId, rule_i: usize) {
-        if let Some(rules) = self.unused_macro_rules.get_mut(&id) {
+        if let Some((_, rules)) = self.unused_macro_rules.get_mut(&id) {
             rules.remove(rule_i);
         }
     }
@@ -356,11 +356,10 @@ fn check_unused_macros(&mut self) {
             self.unused_macro_rules.swap_remove(&node_id);
         }
 
-        for (&node_id, unused_arms) in self.unused_macro_rules.iter() {
+        for (&node_id, (def_id, unused_arms)) in self.unused_macro_rules.iter() {
             if unused_arms.is_empty() {
                 continue;
             }
-            let def_id = self.local_def_id(node_id);
             let m = &self.local_macro_map[&def_id];
             let SyntaxExtensionKind::MacroRules(ref m) = m.ext.kind else {
                 continue;