diff --git a/lib/python/xconv/app.py b/lib/python/xconv/app.py
index 3c53695..08043d6 100644
--- a/lib/python/xconv/app.py
+++ b/lib/python/xconv/app.py
@@ -115,9 +115,7 @@ def main(argv):
 
         task = SimpleTask(aav, make_outfile(args, profile, args.inputs[0]), profile.container)
 
-        options(task.add_input(tmp.name),
-            f="concat",
-            safe="0")
+        task.add_input(tmp.name).set(f="concat", safe="0")
 
         tasks.append(task)
 
diff --git a/lib/python/xconv/profiles/audiobook.py b/lib/python/xconv/profiles/audiobook.py
index 6734585..023c739 100644
--- a/lib/python/xconv/profiles/audiobook.py
+++ b/lib/python/xconv/profiles/audiobook.py
@@ -33,7 +33,6 @@ from ..profile import *
 @output(container="ogg", ext="ogg")
 @defines(stereo="Use two channels",
          bitrate="Use custom target bitrate",
-         voip="Use voice optimization",
          fancy="Use 48kbps stereo (For dramatic audiobooks with a lot of music and effects)")
 @singleaudio
 def audiobook(task, stream, defines):