diff --git a/src/calibre/db/view.py b/src/calibre/db/view.py
index e9d42c97a1..17fd624057 100644
--- a/src/calibre/db/view.py
+++ b/src/calibre/db/view.py
@@ -342,7 +342,7 @@ class View(object):
             self.cache.clear_caches()
         if field is not None:
             self.sort(field, ascending)
-        if do_search and self.search_restriction or self.base_restriction:
+        if do_search and (self.search_restriction or self.base_restriction):
             self.search('', return_matches=False)
 
     def refresh_ids(self, ids):