diff --git a/clientgui/mac/MacBitmapComboBox.cpp b/clientgui/mac/MacBitmapComboBox.cpp
index 86714b2e15..8c279e495b 100644
--- a/clientgui/mac/MacBitmapComboBox.cpp
+++ b/clientgui/mac/MacBitmapComboBox.cpp
@@ -262,6 +262,8 @@ void CBOINCBitmapComboBox::DrawLargeBitmap(CDrawLargeBitmapEvent&) {
 
 
 void CBOINCBitmapComboBox::OnPaint(wxPaintEvent& event) {
+    if (!m_bHaveLargeBitmaps) return;
+
     int x, y;
 	wxPaintDC myDC(this);
     unsigned int i = GetSelection();