diff --git a/src/aui/dockart.cpp b/src/aui/dockart.cpp
index f2bfb08188..82f0d04aac 100644
--- a/src/aui/dockart.cpp
+++ b/src/aui/dockart.cpp
@@ -683,6 +683,8 @@ void wxAuiDefaultDockArt::DrawPaneButton(wxDC& dc, wxWindow *WXUNUSED(window),
                                       wxAuiPaneInfo& pane)
 {
     wxBitmap bmp;
+	if (!(&pane))
+		return;
     switch (button)
     {
         default: