diff --git a/src/calibre/gui2/tag_browser/view.py b/src/calibre/gui2/tag_browser/view.py
index 4de1481af3..64057743b5 100644
--- a/src/calibre/gui2/tag_browser/view.py
+++ b/src/calibre/gui2/tag_browser/view.py
@@ -109,7 +109,7 @@ class TagsView(QTreeView): # {{{
                 }
 
                 QTreeView::item {
-                    border: none;
+                    border: 1px solid transparent;
                     padding-top:1ex;
                     padding-bottom:1ex;
                 }