diff --git a/cleanup/add_volume.py b/cleanup/add_volume.py
new file mode 100755
index 0000000..4aeae0d
--- /dev/null
+++ b/cleanup/add_volume.py
@@ -0,0 +1,33 @@
+#!/usr/bin/python3
+import re
+
+import ox
+import ox.api
+
+site = 'archive.leftove.rs'
+api = ox.api.signin('https://%s/api/' % site)
+
+for regex, fragments in (
+    ['Vol. \d+, No. \d+', ['Vol.', 'No.']],
+    ['Vol \d+ no \d+', [' Vol ', ' no ']],
+    ['Vol:\d+ #\d+', ['Vol:', '#']],
+):
+    for doc in api.findDocuments({
+            'query': {
+                'conditions': [
+                    {'key': 'title', 'operator': '=', 'value': fragment}
+                    for fragment in fragments
+                ],
+                'operator': '&'
+            },
+            'keys': ['id', 'title', 'volume'],
+            'range': [0, 10000]
+    })['data']['items']:
+        if 'Vol' not in doc.get('volume', ''):
+            m = re.compile(regex).findall(doc['title'])
+            if m:
+                print(m[0], doc['id'], doc['title'])
+                api.editDocument({
+                    'id': doc['id'],
+                    'volume': m[0].strip()
+                })