diff --git a/accessibility/source/standard/vclxaccessiblebox.cxx b/accessibility/source/standard/vclxaccessiblebox.cxx
index f9a63d69952c..20aa8f3b6a7e 100644
--- a/accessibility/source/standard/vclxaccessiblebox.cxx
+++ b/accessibility/source/standard/vclxaccessiblebox.cxx
@@ -176,7 +176,7 @@ void VCLXAccessibleBox::ProcessWindowEvent (const VclWindowEvent& rVclWindowEven
         case VCLEVENT_COMBOBOX_SELECT:
         {
              VCLXAccessibleList* pList = static_cast<VCLXAccessibleList*>(m_xList.get());
-             if (pList != NULL)
+             if (pList != NULL && m_xText.is())
              {
                 Reference<XAccessibleText> xText (m_xText->getAccessibleContext(), UNO_QUERY);
                 if ( xText.is() )