From 963ee23e8275fc7118d26bf99ac7a456366f8f0a Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 1 Nov 2014 22:07:46 +0530
Subject: [PATCH] ...

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

diff --git a/src/calibre/db/lazy.py b/src/calibre/db/lazy.py
index 5e8c4d4d8a..059ee18762 100644
--- a/src/calibre/db/lazy.py
+++ b/src/calibre/db/lazy.py
@@ -236,7 +236,7 @@ def composite_getter(mi, field, dbref, book_id, cache, formatter, template_cache
         except Exception:
             import traceback
             traceback.print_exc()
-            return 'ERROR WHILE EVALUATING ' + field
+            return 'ERROR WHILE EVALUATING: %s' % field
         return ret
 
 def virtual_libraries_getter(dbref, book_id, cache):