diff --git a/patacrep/authors.py b/patacrep/authors.py
index dfaf9999..3a3e8600 100644
--- a/patacrep/authors.py
+++ b/patacrep/authors.py
@@ -48,7 +48,7 @@ def split_author_names(string):
     ignore_space = False
     last_space = index = 0
     brace_count = 0
-    for char in string:
+    for char in string.strip():
         index += 1
         if brace_count == 0:
             if char == "\\":
diff --git a/patacrep/build.py b/patacrep/build.py
index f2f4b270..dc5cdda0 100755
--- a/patacrep/build.py
+++ b/patacrep/build.py
@@ -4,6 +4,7 @@
 """Build a songbook, according to parameters found in a .sb file."""
 
 import codecs
+import copy
 import glob
 import logging
 import os.path
@@ -95,7 +96,9 @@ class Songbook(object):
         config.update(renderer.get_variables())
         config.update(self.config)
 
-        config['authwords'] = authors.compile_authwords(config['authwords'])
+        config['_compiled_authwords'] = authors.compile_authwords(
+                copy.deepcopy(config['authwords'])
+                )
 
         self.config = config
         # Configuration set
@@ -105,7 +108,6 @@ class Songbook(object):
                 self.config,
                 )
         self.config['render_content'] = content.render_content
-        self.config['titleprefixkeys'] = ["after", "sep", "ignore"]
         self.config['content'] = self.contentlist
         self.config['filename'] = output.name[:-4]
 
diff --git a/patacrep/data/templates/default.tex b/patacrep/data/templates/default.tex
index 939696d1..1a2bf26a 100644
--- a/patacrep/data/templates/default.tex
+++ b/patacrep/data/templates/default.tex
@@ -86,18 +86,18 @@
    \newauthorindex{authidx}{((filename))_auth}
 
    (* for prefix in titleprefixwords *)
-   \titleprefixword{((prefix))}
+       \titleprefixword{((prefix))}
    (* endfor*)
-   (* for key in titleprefixkeys *)
-      (* for word in authwords.key *)
-          (* if key=="after" *)
-          \authbyword{((word))}
-          (* else *)
-          \auth((key))word{((word))}
-          (* endif *)
-      (* endfor *)
-   (* endfor*)
-   
+   (* for word in authwords.ignore *)
+       \authignoreword{((word))}
+   (* endfor *)
+   (* for word in authwords.after *)
+       \authbyword{((word))}
+   (* endfor *)
+   (* for word in authwords.sep *)
+       \authsepword{((word))}
+   (* endfor *)
+
    (* if notenamesout=="alphascale" *)
       \notenamesout{A}{B}{C}{D}{E}{F}{G}
     (* else *)
diff --git a/patacrep/songs.py b/patacrep/songs.py
index d62cbe64..2cc49846 100755
--- a/patacrep/songs.py
+++ b/patacrep/songs.py
@@ -31,7 +31,7 @@ class Song(object):
         if "by" in self.args.keys():
             self.authors = processauthors(
                     self.args["by"],
-                    **config["authwords"]
+                    **config["_compiled_authwords"]
                     )
         else:
             self.authors = []