diff --git a/artiq/gui/dndwidgets.py b/artiq/gui/dndwidgets.py
index 46572e57c..372a6b595 100644
--- a/artiq/gui/dndwidgets.py
+++ b/artiq/gui/dndwidgets.py
@@ -1,7 +1,7 @@
 from PyQt5 import QtCore, QtWidgets
 
 
-class DragDropSplitter(QtWidgets.QSplitter):
+class VDragDropSplitter(QtWidgets.QSplitter):
     def __init__(self, parent):
         QtWidgets.QSplitter.__init__(self, parent=parent)
         self.setAcceptDrops(True)