diff --git a/songbook-makeindex.py b/songbook-makeindex.py
index f780ecaa..56cef6f9 100755
--- a/songbook-makeindex.py
+++ b/songbook-makeindex.py
@@ -40,13 +40,13 @@ class index:
         self.prefix_patterns = []
         if 'prefix' in self.keywords:
             for prefix in self.keywords['prefix']:
-                self.prefix_patterns.append(re.compile(r"^(%s)\b\s*(.*)$" % prefix))
+                self.prefix_patterns.append(re.compile(r"^(%s)(\b|\\)(\s*.*)$" % prefix))
 
     def add(self, key, number, link):
         for pattern in self.prefix_patterns:
             match = pattern.match(key)
             if match:
-                key = "%s (%s)" % (match.group(2), match.group(1))
+                key = "%s (%s)" % (match.group(2) + match.group(3), match.group(1))
                 break # Only one match per key
         (first, key) = self.filter(key)
         if not self.data.has_key(first):
diff --git a/songbook.py b/songbook.py
index 4561b986..05c533ae 100755
--- a/songbook.py
+++ b/songbook.py
@@ -10,6 +10,7 @@ import locale
 import shutil
 import locale
 import platform
+from unidecode import unidecode
 
 from utils import recursiveFind
 from utils.plastex import parsetex
@@ -17,9 +18,12 @@ from utils.plastex import parsetex
 class Song:
     #: Ordre de tri
     sort = []
+    #: Préfixes à ignorer pour le tri
+    prefixes = []
 
     def __init__(self, path, languages, titles, args):
         self.titles  = titles
+        self.normalized_titles = [locale.strxfrm(unprefixed(unidecode(unicode(title, "utf-8")), self.prefixes)) for title in titles]
         self.args   = args
         self.path   = path
         self.languages = languages
@@ -32,8 +36,8 @@ class Song:
             return NotImplemented
         for key in self.sort:
             if key == "@title":
-                self_key = [locale.strxfrm(title) for title in self.titles]
-                other_key = [locale.strxfrm(title) for title in other.titles]
+                self_key = self.normalized_titles
+                other_key = other.normalized_titles
             elif key == "@path":
                 self.key = locale.strxfrm(self.path)
                 other_key = locale.strxfrm(other.path)
@@ -83,9 +87,8 @@ def unprefixed(title, prefixes):
 class SongsList:
     """Manipulation et traitement de liste de chansons"""
 
-    def __init__(self, library, prefixes, language):
+    def __init__(self, library, language):
         self._library = library
-        self._prefixes = prefixes
         self._language = language
 
         # Liste triée des chansons
@@ -205,6 +208,7 @@ def makeTexFile(sb, library, output):
     else:
         sort = [u"by", u"album", u"@title"]
     Song.sort = sort
+    Song.prefixes = prefixes
 
 
     parameters = parseTemplate("templates/"+template)
@@ -212,7 +216,7 @@ def makeTexFile(sb, library, output):
     # compute songslist
     if songs == "all":
         songs = map(lambda x: x[len(library) + 6:], recursiveFind(os.path.join(library, 'songs'), '*.sg'))
-    songslist = SongsList(library, prefixes, sb["lang"])
+    songslist = SongsList(library, sb["lang"])
     songslist.append_list(songs)
 
     sb["languages"] = ",".join(songslist.languages())