diff --git a/samples/propgrid/propgrid.cpp b/samples/propgrid/propgrid.cpp
index 134c43cd88..db343f3a21 100644
--- a/samples/propgrid/propgrid.cpp
+++ b/samples/propgrid/propgrid.cpp
@@ -2575,8 +2575,8 @@ FormMain::OnSetBackgroundColour( wxCommandEvent& event )
 
     if ( col.IsOk() )
     {
-        bool recursively = (event.GetId()==ID_SETBGCOLOURRECUR) ? true : false;
-        pg->SetPropertyBackgroundColour(prop, col, recursively);
+        int flags = (event.GetId()==ID_SETBGCOLOURRECUR) ? wxPG_RECURSE : 0;
+        pg->SetPropertyBackgroundColour(prop, col, flags);
     }
 }