diff --git a/include/wx/private/overlay.h b/include/wx/private/overlay.h
index 9c70479f7d..c38ed99036 100644
--- a/include/wx/private/overlay.h
+++ b/include/wx/private/overlay.h
@@ -27,6 +27,7 @@
 #else // !wxHAS_NATIVE_OVERLAY
 
 #include "wx/bitmap.h"
+#include "wx/window.h"
 
 // generic implementation of wxOverlay
 class wxOverlayImpl
diff --git a/src/common/overlaycmn.cpp b/src/common/overlaycmn.cpp
index b9c57f4fb3..3936c87c10 100644
--- a/src/common/overlaycmn.cpp
+++ b/src/common/overlaycmn.cpp
@@ -45,7 +45,7 @@ wxOverlay::wxOverlay()
 
 wxOverlay::~wxOverlay()
 {
-    m_impl;
+    delete m_impl;
 }
 
 bool wxOverlay::IsOk()