diff --git a/forms/source/component/ListBox.cxx b/forms/source/component/ListBox.cxx
index 90decec5d2ad..3ac34f89cb45 100644
--- a/forms/source/component/ListBox.cxx
+++ b/forms/source/component/ListBox.cxx
@@ -915,7 +915,7 @@ namespace frm
                             aBoundValue = static_cast<sal_Int16>(xListCursor->getRow()-1);
                         aValueList.push_back( aBoundValue );
 
-                        if ( bUseNULL && ( m_nNULLPos == -1 ) && aBoundValue.isNull() )
+                        if ( m_nNULLPos == -1 && aBoundValue.isNull() )
                             m_nNULLPos = sal_Int16( aDisplayList.size() - 1 );
                         if ( bUseNULL && ( m_nNULLPos == -1 ) && aStr.isEmpty() )
                             // There is already a non-NULL entry with empty display string;