diff --git a/src/calibre/gui2/catalog/catalog_epub_mobi.ui b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
index 91fcbdc364..dab8c972c7 100644
--- a/src/calibre/gui2/catalog/catalog_epub_mobi.ui
+++ b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
@@ -80,7 +80,7 @@
     <widget class="QLabel" name="label_6">
      <property name="text">
       <string>Regex tips:
-- The default regex - \[[\w]*\] - excludes genre tags of the form [tag], e.g., [Amazon Freebie]
+- The default regex - \[[\w ]*\] - excludes genre tags of the form [tag], e.g., [Amazon Freebie]
 - A regex pattern of a single dot excludes all genre tags, generating no Genre Section</string>
      </property>
      <property name="wordWrap">
diff --git a/src/calibre/library/catalog.py b/src/calibre/library/catalog.py
index 5110a2eee1..51f1ff1104 100644
--- a/src/calibre/library/catalog.py
+++ b/src/calibre/library/catalog.py
@@ -1009,7 +1009,7 @@ class EPUB_MOBI(CatalogPlugin):
                     elif x['series'] < y['series']:
                         return -1
                     elif not x['series'] and not y['series']:
-                        if x['title'] > y['title']:
+                        if self.generateSortTitle(x['title']) > self.generateSortTitle(y['title']):
                             return 1
                         else:
                             return -1