diff --git a/src/Include/xrRender/FactoryPtr.h b/src/Include/xrRender/FactoryPtr.h
index 85e38815e1e..af45b377547 100644
--- a/src/Include/xrRender/FactoryPtr.h
+++ b/src/Include/xrRender/FactoryPtr.h
@@ -46,9 +46,7 @@ class FactoryPtr
 
     T& operator*() const { return *m_pObject; }
     T* operator->() const { return m_pObject; }
-    // unspecified bool type
-    typedef T const* (FactoryPtr::*unspecified_bool_type)() const;
-    operator unspecified_bool_type() const { return (!m_pObject ? 0 : &FactoryPtr::get); }
+    operator bool() const { return m_pObject; }
     bool operator!() const { return m_pObject == nullptr; }
 private:
     void CreateObject();