diff --git a/src/plugins/cppeditor/cppeditor.cpp b/src/plugins/cppeditor/cppeditor.cpp
index 97e673ccd00..ec161dfa4ae 100644
--- a/src/plugins/cppeditor/cppeditor.cpp
+++ b/src/plugins/cppeditor/cppeditor.cpp
@@ -1095,11 +1095,11 @@ void CPPEditor::updateMethodBoxIndexNow()
     int line = 0, column = 0;
     convertPosition(position(), &line, &column);
 
-    QModelIndex m_overviewModelIndex = indexForPosition(line, column);
+    m_overviewModelIndex = indexForPosition(line, column);
     emit overviewModelIndexChanged(m_overviewModelIndex);
 
     // ComboBox only let's you select top level indexes!
-    QModelIndex comboIndex = indexForPosition(line, column);
+    QModelIndex comboIndex = m_overviewModelIndex;
     while (comboIndex.parent().isValid())
         comboIndex = comboIndex.parent();