diff --git a/src/calibre/ebooks/conversion/plugins/comic_input.py b/src/calibre/ebooks/conversion/plugins/comic_input.py
index 2956dd07d8..08bfd6c437 100644
--- a/src/calibre/ebooks/conversion/plugins/comic_input.py
+++ b/src/calibre/ebooks/conversion/plugins/comic_input.py
@@ -20,7 +20,7 @@ class ComicInput(InputFormatPlugin):
 
     name        = 'Comic Input'
     author      = 'Kovid Goyal'
-    description = _('Optimize comic files (.cbz, .cbr, .cbc) for viewing on portable devices')
+    description = _('Optimize comic files (.cbz, .cbr, .cb7, .cbc) for viewing on portable devices')
     file_types  = {'cbz', 'cbr', 'cb7', 'cbc'}
     is_image_collection = True
     commit_name = 'comic_input'