1 files changed, 1 insertions, 0 deletions
diff --git a/source/core/slang-smart-pointer.h b/source/core/slang-smart-pointer.h
index c473cca3c..45083c1eb 100644
--- a/source/core/slang-smart-pointer.h
+++ b/source/core/slang-smart-pointer.h
@@ -285,6 +285,7 @@ namespace Slang
         TransformablePtr(T* ptr) { *this = ptr; }
         TransformablePtr(RefPtr<T> ptr) { *this = ptr; }
         TransformablePtr(const TransformablePtr<T>& ptr) = default;
+        TransformablePtr<T>& operator=(const TransformablePtr<T>& ptr) = default;
 
         void promoteToStrongReference() { m_strongPtr = m_weakPtr; }
         void demoteToWeakReference() { m_strongPtr = nullptr; }