diff --git a/src/generic/listctrl.cpp b/src/generic/listctrl.cpp
index eea37b0384..42db9247e5 100644
--- a/src/generic/listctrl.cpp
+++ b/src/generic/listctrl.cpp
@@ -3946,6 +3946,8 @@ bool wxListMainWindow::GetItemPosition(long item, wxPoint& pos) const
 
 void wxListMainWindow::RecalculatePositions(bool noRefresh)
 {
+    const int lineHeight = GetLineHeight();
+
     wxClientDC dc( this );
     dc.SetFont( GetFont() );
 
@@ -3979,8 +3981,6 @@ void wxListMainWindow::RecalculatePositions(bool noRefresh)
         clientHeight;
     GetSize( &clientWidth, &clientHeight );
 
-    const int lineHeight = GetLineHeight();
-
     if ( InReportView() )
     {
         // all lines have the same height and we scroll one line per step