diff --git a/src/calibre/gui2/library/alternate_views.py b/src/calibre/gui2/library/alternate_views.py
index c84686cffe..44367b55cb 100644
--- a/src/calibre/gui2/library/alternate_views.py
+++ b/src/calibre/gui2/library/alternate_views.py
@@ -1020,7 +1020,7 @@ class GridView(QListView):
         return super(GridView, self).selectionCommand(index, event)
 
     def wheelEvent(self, ev):
-        if ev.phase() not in (Qt.ScrollUpdate, Qt.NoScrollPhase):
+        if ev.phase() not in (Qt.ScrollUpdate, 0):
             return
         number_of_pixels = ev.pixelDelta()
         number_of_degrees = ev.angleDelta() / 8.0