diff --git a/qubesmanager/table_widgets.py b/qubesmanager/table_widgets.py
index 7477dcc..ba4b460 100644
--- a/qubesmanager/table_widgets.py
+++ b/qubesmanager/table_widgets.py
@@ -448,7 +448,7 @@ class VmSizeOnDiskItem(QtGui.QTableWidgetItem):
             self.setText("n/a")
         else:
             self.value = 10
-            self.value = self.vm.get_disk_utilization()/(1024*1024)
+            self.value = round(self.vm.get_disk_utilization()/(1024*1024), 2)
             self.setText(str(self.value) + " MiB")
 
     def __lt__(self, other):