diff --git a/src/imxml2epub.py b/src/imxml2epub.py
index 0e9b316..55c3385 100755
--- a/src/imxml2epub.py
+++ b/src/imxml2epub.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8; mode: python -*-
-# Time-stamp: <2020-01-14 14:56:34 (kthoden)>
+# Time-stamp: <2020-01-14 16:18:28 (kthoden)>
 
 """ Convert a customized DocBook XML file into a set of files that
 constitute the contents of an EPUB file.
@@ -721,21 +721,25 @@ def add_css_snippet(css_snippet, css_file):
 xmlSections = xmlEbookTree.findall(".//div2")
 for xmlSection in xmlSections:
     xmlSection.find("head").tag = "h2"
-    if xmlSection.get("rend") != "nonumber":
-        idSection = xmlSection.get("id")
-        strHeadline = xmlSection.find("h2").text or ""
-        logging.info(strHeadline)
+    idSection = xmlSection.get("id")
+    strHeadline = xmlSection.find("h2").text or ""
+    logging.info(strHeadline)
+    if xmlSection.get("n") != "nonumber":
         xmlSection.find("h2").text = str(dictSections[idSection]) + " " + strHeadline
+    else:
+        xmlSection.find("h2").text = strHeadline
 
 logging.info(f"{logseparator}Convert EOAsubsection to H3")
 xmlSubsections = xmlEbookTree.findall(".//div3")
 for xmlSubsection in xmlSubsections:
     xmlSubsection.find("head").tag = "h3"
-    if xmlSubsection.get("rend") != "nonumber":
-        idSection = xmlSubsection.get("id")
-        strHeadline = xmlSubsection.find("h3").text or ""
-        logging.info(strHeadline)
+    idSection = xmlSubsection.get("id")
+    strHeadline = xmlSubsection.find("h3").text or ""
+    logging.info(strHeadline)
+    if xmlSubsection.get("n") != "nonumber":
         xmlSubsection.find("h3").text = str(dictSections[idSection]) + " " + strHeadline
+    else:
+        xmlSubsection.find("h3").text = strHeadline
 
 logging.info(f"{logseparator}Convert EOAsubsubsection to H4")
 xmlSubsubsections = xmlEbookTree.findall(".//div4")