diff --git a/grum/mainwin.py b/grum/mainwin.py
index 008543e..760f7b0 100644
--- a/grum/mainwin.py
+++ b/grum/mainwin.py
@@ -21,7 +21,6 @@ class MainWindow(QMainWindow):
         self.lst = lst = DictList(exampledata, factory=PlotDescription)
         lst.setAlternatingRowColors(True)
         lst.doubleClicked.connect(self.on_select_list_item)
-        self.setCentralWidget(lst)
 
         bar = self.menuBar()
         self.mdi = mdi = MDIArea(bar)