diff --git a/src/wap.ixsw.la/catalog.py b/src/ixsw.la/catalog.py
similarity index 78%
rename from src/wap.ixsw.la/catalog.py
rename to src/ixsw.la/catalog.py
index 419ec94..3025972 100644
--- a/src/wap.ixsw.la/catalog.py
+++ b/src/ixsw.la/catalog.py
@@ -32,14 +32,17 @@ def httpRequest(url: str) -> str:  # fetch raw html content
 def extractCatalog(rawHtml: str) -> dict:  # extract catalog from html content
     catalog = {}
     html = BeautifulSoup(rawHtml, 'lxml')
-    div = html.select('div[class="directoryArea"]')[0]
-    for item in div.select('a[style=""]'):
+    for item in html.select('dd'):
+        item = item.select('a')[0]
         name = re.search(r'^(第\d+章)(.*)$', item.text)
         pageId = item.attrs['href'].replace('/ks82668/', '').replace('.html', '')
         catalog['%s %s' % (name[1], name[2].strip())] = pageId
-    return catalog
+    catalog = sorted(catalog.items(), key = lambda d: int(
+        re.search(r'^第(\d+)章', d[0])[1]  # sort by chapter
+    ))
+    return {x[0]: x[1] for x in catalog}  # formatted output
 
 
 print(json.dumps(
-    extractCatalog(httpRequest('https://wap.ixsw.la/ks82668/all.html'))
+    extractCatalog(httpRequest('https://www.ixsw.la/ks82668/'))
 ))