diff --git a/AK/MaybeOwned.h b/AK/MaybeOwned.h
index cc280ea0a3..48ef03994f 100644
--- a/AK/MaybeOwned.h
+++ b/AK/MaybeOwned.h
@@ -13,6 +13,8 @@ namespace AK {
 
 template<typename T>
 class MaybeOwned {
+    AK_MAKE_NONCOPYABLE(MaybeOwned);
+
 public:
     template<DerivedFrom<T> U>
     MaybeOwned(NonnullOwnPtr<U> handle)
@@ -27,6 +29,9 @@ public:
     {
     }
 
+    MaybeOwned(MaybeOwned&&) = default;
+    MaybeOwned& operator=(MaybeOwned&&) = default;
+
     T* ptr()
     {
         if (m_handle.template has<T*>())