diff --git a/find_chapters.py b/find_chapters.py
index 71353c2..a647b78 100644
--- a/find_chapters.py
+++ b/find_chapters.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8; mode: python -*-
 
 """
-Find pages of a chapter in an LaTeX aux file
+Find pages of a chapter in an LaTeX toc file
 
 This is from Hack #92 from the O'Reilly Book "LaTeX Hacks"
 (9783897214774) where it was implemented in Perl. It depends on a
@@ -16,7 +16,7 @@
 uploading chapter files and prefixing them with chapter info could be
 further automatted. However, output needs to be checked!
 
-Maybe as a preprocessing step (and not to schlepp the aux file
+Maybe as a preprocessing step (and not to schlepp the toc file
 around), include the chapter page information in a config file before
 uploading (or use a PDF metadata field for that?)
 """
@@ -40,6 +40,10 @@
 # \newlabel{chapter01_caraffa}{{1}{5}{Objects of Value: Challenging Conventional Hierarchies in the Photo Archive\EOAauthor {Costanza Caraffa}}{section*.4}{}}
 NEWLABEL_REGEX = r"\\newlabel\{" + CHAPTER_LABEL_REGEX + "\}\{\{\d+\}\{(\d+)\}"
 
+# toc
+# \contentsline {chapter}{\numberline {6}Der Kontext 2: Die Renaissance-Kommentare zu Pseudo-Proklos’ \emph {Sphaera}}{117}{chapter.6}%
+TOC_REGEX = r"\\contentsline \{chapter\}\{.*?}\{(\d+)\}\{.*?\}"
+
 # declare rules how to name chapter files
 
 def get_labels_from_xml(xmlfile):
@@ -69,7 +73,7 @@ def main():
     """The main bit"""
 
     parser = argparse.ArgumentParser()
-    parser.add_argument("auxfile", help="The auxfile that is used to read the page numbers from.")
+    parser.add_argument("tocfile", help="The tocfile that is used to read the page numbers from.")
     parser.add_argument("pdffile", help="The PDF file that is going to be split in chapters.")
     parser.add_argument("-t", "--teifile", help="The TEI file for getting the labels of chapters.")
     parser.add_argument("-o", "--offset", help="An offset to be added to the pages. You have to manually find out the number. Should be around 7.", default=0)
@@ -77,20 +81,18 @@ def main():
 
     offset = int(args.offset)
 
-    with open(args.auxfile) as aux_file:
-        aux_lines = aux_file.read()
+    with open(args.tocfile) as toc_file:
+        toc_lines = toc_file.read()
 
     if args.teifile:
         references = []
         chapter_ids = get_labels_from_xml(args.teifile)
         for chapter_id in chapter_ids:
             newlabel_regex = r"\\newlabel\{" + chapter_id + "\}\{\{\d+\}\{(\d+)\}"
-            ding = re.findall(newlabel_regex, aux_lines)[0]
+            ding = re.findall(newlabel_regex, toc_lines)[0]
             references.append(ding)
     else:
-        references = re.findall(NEWLABEL_REGEX, aux_lines)
-
-    print(references)
+        references = re.findall(TOC_REGEX, toc_lines)
 
     if not references:
         logging.error("No chapter marks found. Exiting")