diff --git a/calibre-plugin/plugin-defaults.ini b/calibre-plugin/plugin-defaults.ini
index 74de4a74..cdd94c5a 100644
--- a/calibre-plugin/plugin-defaults.ini
+++ b/calibre-plugin/plugin-defaults.ini
@@ -123,6 +123,10 @@ include_tocpage: true
 ## it has +90% confidence.  'auto' is not reliable.
 #website_encodings: utf8, Windows-1252, iso-8859-1
 
+## When using 'auto' in website_encodings, you can tweak the
+## confidence required to use the chardet detected.
+#chardet_confidence_limit:0.9
+
 ## entries to make epub subjects and calibre tags
 ## lastupdate creates two tags: "Last Update Year/Month: %Y/%m" and "Last Update: %Y/%m/%d"
 include_subject_tags: extratags, genre, category, characters, ships, status
diff --git a/fanficfare/configurable.py b/fanficfare/configurable.py
index 41593476..c8d7a250 100644
--- a/fanficfare/configurable.py
+++ b/fanficfare/configurable.py
@@ -354,6 +354,7 @@ def get_valid_keywords():
                  'include_subject_tags',
                  'include_titlepage',
                  'include_tocpage',
+                 'chardet_confidence_limit',
                  'is_adult',
                  'join_string_authorHTML',
                  'keep_style_attr',
@@ -912,9 +913,11 @@ class Configuration(ConfigParser.SafeConfigParser):
                         continue
                     detected = chardet.detect(data)
                     #print detected
-                    if detected['confidence'] > 0.9:
+                    if detected['confidence'] > float(self.getConfig("chardet_confidence_limit",0.9)):
+                        logger.debug("using chardet detected encoding:%s(%s)"%(detected['encoding'],detected['confidence']))
                         code=detected['encoding']
                     else:
+                        logger.debug("chardet confidence too low:%s(%s)"%(detected['encoding'],detected['confidence']))
                         continue
                 return data.decode(code)
             except:
diff --git a/fanficfare/defaults.ini b/fanficfare/defaults.ini
index 1548e935..9a64d327 100644
--- a/fanficfare/defaults.ini
+++ b/fanficfare/defaults.ini
@@ -123,6 +123,10 @@ include_tocpage: true
 ## it has +90% confidence.  'auto' is not reliable.
 #website_encodings: utf8, Windows-1252, iso-8859-1
 
+## When using 'auto' in website_encodings, you can tweak the
+## confidence required to use the chardet detected.
+#chardet_confidence_limit:0.9
+
 ## python string Template, string with ${title}, ${author} etc, same as titlepage_entries
 ## Can include directories.
 #output_filename: books/${title}-${siteabbrev}_${storyId}${formatext}