From 6d72060fa030cf7d592d778619f5c69accb49e9a Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 2 Apr 2018 11:32:59 +0530
Subject: [PATCH] typo in comment

---
 src/calibre/db/cache.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/db/cache.py b/src/calibre/db/cache.py
index 5f83b640c4..dd202191f5 100644
--- a/src/calibre/db/cache.py
+++ b/src/calibre/db/cache.py
@@ -1381,7 +1381,7 @@ class Cache(object):
     @api
     def add_format(self, book_id, fmt, stream_or_path, replace=True, run_hooks=True, dbapi=None):
         '''
-        Add a format to the specified book. Return True of the format was added successfully.
+        Add a format to the specified book. Return True if the format was added successfully.
 
         :param replace: If True replace existing format, otherwise if the format already exists, return False.
         :param run_hooks: If True, file type plugins are run on the format before and after being added.