From b9cf208a5edb60b9a5d3d7a0bc0825ff70f7010e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 20 Apr 2017 08:17:15 +0530
Subject: [PATCH] ...

---
 src/calibre/ebooks/conversion/search_replace.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/ebooks/conversion/search_replace.py b/src/calibre/ebooks/conversion/search_replace.py
index a43d4e9193..c75cfa7b91 100644
--- a/src/calibre/ebooks/conversion/search_replace.py
+++ b/src/calibre/ebooks/conversion/search_replace.py
@@ -16,4 +16,4 @@ def compile_regular_expression(text, flags=REGEX_FLAGS):
     ans = regex_cache.get(key)
     if ans is None:
         ans = regex_cache[key] = regex.compile(text, flags=flags)
-    return regex.compile(text, flags=flags)
+    return ans