diff --git a/Libraries/LibWeb/IndexedDB/IDBObjectStore.h b/Libraries/LibWeb/IndexedDB/IDBObjectStore.h
index c4c8284921a..6acf517f005 100644
--- a/Libraries/LibWeb/IndexedDB/IDBObjectStore.h
+++ b/Libraries/LibWeb/IndexedDB/IDBObjectStore.h
@@ -26,6 +26,10 @@ public:
     JS::Value key_path() const;
     GC::Ref<IDBTransaction> transaction() const { return m_transaction; }
 
+    // https://w3c.github.io/IndexedDB/#dom-idbobjectstore-autoincrement
+    // The autoIncrement getter steps are to return true if this’s object store has a key generator, and false otherwise.
+    bool auto_increment() const { return m_store->key_generator().has_value(); }
+
 protected:
     explicit IDBObjectStore(JS::Realm&, GC::Ref<ObjectStore>, GC::Ref<IDBTransaction>);
     virtual void initialize(JS::Realm&) override;
diff --git a/Libraries/LibWeb/IndexedDB/IDBObjectStore.idl b/Libraries/LibWeb/IndexedDB/IDBObjectStore.idl
index 92f3eefdae0..e1790faa374 100644
--- a/Libraries/LibWeb/IndexedDB/IDBObjectStore.idl
+++ b/Libraries/LibWeb/IndexedDB/IDBObjectStore.idl
@@ -8,7 +8,7 @@ interface IDBObjectStore {
     readonly attribute any keyPath;
     [FIXME] readonly attribute DOMStringList indexNames;
     [SameObject] readonly attribute IDBTransaction transaction;
-    [FIXME] readonly attribute boolean autoIncrement;
+    readonly attribute boolean autoIncrement;
     
     [FIXME, NewObject] IDBRequest put(any value, optional any key);
     [FIXME, NewObject] IDBRequest add(any value, optional any key);
diff --git a/Libraries/LibWeb/IndexedDB/Internal/ObjectStore.h b/Libraries/LibWeb/IndexedDB/Internal/ObjectStore.h
index 4a6e1dc98fd..cf2b55adaef 100644
--- a/Libraries/LibWeb/IndexedDB/Internal/ObjectStore.h
+++ b/Libraries/LibWeb/IndexedDB/Internal/ObjectStore.h
@@ -33,9 +33,7 @@ public:
     Optional<KeyPath> key_path() const { return m_key_path; }
     bool uses_inline_keys() const { return m_key_path.has_value(); }
     bool uses_out_of_line_keys() const { return !m_key_path.has_value(); }
-
-    // The autoIncrement getter steps are to return true if this’s object store has a key generator, and false otherwise.
-    bool auto_increment() const { return m_key_generator.has_value(); }
+    Optional<KeyGenerator> key_generator() const { return m_key_generator; }
 
 private:
     ObjectStore(String name, bool auto_increment, Optional<KeyPath> const& key_path)