diff --git a/include/wx/popupwin.h b/include/wx/popupwin.h
index 0bef727d28..63c4d65eea 100644
--- a/include/wx/popupwin.h
+++ b/include/wx/popupwin.h
@@ -151,9 +151,13 @@ protected:
     // notify the combo here
     virtual void OnDismiss();
 
+    // forward the key presses to the combobox
+    void OnKeyDown(wxKeyEvent& event);
+
     // the parent combobox
     wxComboControl *m_combo;
 
+    DECLARE_EVENT_TABLE()
     DECLARE_DYNAMIC_CLASS(wxPopupComboWindow)
 };
 
diff --git a/src/common/popupcmn.cpp b/src/common/popupcmn.cpp
index b1e1eeade7..29fdf03fc8 100644
--- a/src/common/popupcmn.cpp
+++ b/src/common/popupcmn.cpp
@@ -304,6 +304,10 @@ bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
 // wxPopupComboWindow
 // ----------------------------------------------------------------------------
 
+BEGIN_EVENT_TABLE(wxPopupComboWindow, wxPopupTransientWindow)
+    EVT_KEY_DOWN(wxPopupComboWindow::OnKeyDown)
+END_EVENT_TABLE()
+
 wxPopupComboWindow::wxPopupComboWindow(wxComboControl *parent)
                   : wxPopupTransientWindow(parent)
 {
@@ -341,6 +345,11 @@ void wxPopupComboWindow::OnDismiss()
     m_combo->OnDismiss();
 }
 
+void wxPopupComboWindow::OnKeyDown(wxKeyEvent& event)
+{
+    m_combo->ProcessEvent(event);
+}
+
 #endif // wxUSE_COMBOBOX && defined(__WXUNIVERSAL__)
 
 // ----------------------------------------------------------------------------