diff --git a/wxPython/include/wx/wxPython/pyclasses.h b/wxPython/include/wx/wxPython/pyclasses.h
index 518aab0184..51919fda90 100644
--- a/wxPython/include/wx/wxPython/pyclasses.h
+++ b/wxPython/include/wx/wxPython/pyclasses.h
@@ -186,6 +186,7 @@ class wxPyVScrolledWindow;
 class wxPyVListBox;
 class wxPyHtmlListBox;
 class wxPyPanel;
+class wxPyScrolledWindow;
 class wxPyPopupTransientWindow;
 class wxPyPreviewFrame;
 class wxPyWindow;