diff --git a/src/calibre/library/catalogs/epub_mobi_builder.py b/src/calibre/library/catalogs/epub_mobi_builder.py
index e160886676..7cbd639fd7 100644
--- a/src/calibre/library/catalogs/epub_mobi_builder.py
+++ b/src/calibre/library/catalogs/epub_mobi_builder.py
@@ -42,7 +42,7 @@ class CatalogBuilder(object):
     DATE_RANGE=[30]
 
     # Text used in generated catalog for title section with other-than-ASCII leading letter
-    SYMBOLS = 'Symbols'
+    SYMBOLS = _('Symbols')
 
     # basename              output file basename
     # creator               dc:creator in OPF metadata