diff --git a/src/msw/statbox.cpp b/src/msw/statbox.cpp
index da28e527ff..9a08377074 100644
--- a/src/msw/statbox.cpp
+++ b/src/msw/statbox.cpp
@@ -143,24 +143,23 @@ WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
 
     if ( exstyle )
     {
-        // If any of the ancestors are scrolling windows, style has to be WS_EX_TRANSPARENT
-        // or the static box won't be painted when the window is scrolled. We try
-        // not to do this normally, because we get a lot of flicker.
-        wxWindow* p = GetParent();
-        bool ancestorScrolls = false;
-        while (p && !p->IsTopLevel())
+        *exstyle = 0;
+
+        // If any of the ancestors are scrolling windows, style has to be
+        // WS_EX_TRANSPARENT or the static box won't be painted when the window
+        // is scrolled. We try not to do this normally, because we get a lot of
+        // flicker.
+        for ( wxWindow *win = GetParent(); win; win = win->GetParent() )
         {
-            if (p->HasFlag(wxVSCROLL) || GetParent()->HasFlag(wxHSCROLL))
+            if ( win->HasFlag(wxVSCROLL) || win->HasFlag(wxHSCROLL) )
             {
-                ancestorScrolls = true;
+                *exstyle = WS_EX_TRANSPARENT;
                 break;
             }
-            p = p->GetParent();
+
+            if ( win->IsTopLevel() )
+                break;
         }
-        if (ancestorScrolls)
-            *exstyle = WS_EX_TRANSPARENT;
-        else
-            *exstyle = 0;
     }
 
     return styleWin | BS_GROUPBOX;