diff --git a/oml/meta/__init__.py b/oml/meta/__init__.py
index 3db506d..7e7fb21 100644
--- a/oml/meta/__init__.py
+++ b/oml/meta/__init__.py
@@ -13,6 +13,8 @@ from . import worldcat
 from . import google
 from . import duckduckgo
 
+from oml import settings
+
 import logging
 logger = logging.getLogger(__name__)
 
@@ -84,6 +86,9 @@ def lookup(key, value):
             data[k] = []
         if v not in data[k]:
             data[k].append(v)
+    for key in [k['id'] for k in settings.config['itemKeys'] if isinstance(k['type'], list)]:
+        if key in data and not isinstance(data[key], list):
+            data[key] = [data[key]]
     return data
 
 def isvalid_id(key, value):
diff --git a/oml/metaremote.py b/oml/metaremote.py
index b6f6c77..81ca973 100644
--- a/oml/metaremote.py
+++ b/oml/metaremote.py
@@ -7,6 +7,8 @@ from urllib.parse import urlencode
 
 from ox.cache import read_url
 
+import settings
+
 import logging
 logger = logging.getLogger(__name__)
 
@@ -28,4 +30,8 @@ def find(query):
 
 def lookup(key, value):
     logger.debug('lookup %s %s', key, value)
-    return request('getMetadata', {key: value})
+    data = request('getMetadata', {key: value})
+    for key in [k['id'] for k in settings.config['itemKeys'] if isinstance(k['type'], list)]:
+        if key in data and not isinstance(data[key], list):
+            data[key] = [data[key]]
+    return data
diff --git a/oml/settings.py b/oml/settings.py
index 2f82b9e..bb9c423 100644
--- a/oml/settings.py
+++ b/oml/settings.py
@@ -5,8 +5,8 @@ import json
 import os
 import ed25519
 
-from pdict import pdict
-from utils import get_user_id
+from oml.pdict import pdict
+from oml.utils import get_user_id
 
 base_dir = os.path.normpath(os.path.join(os.path.abspath(os.path.dirname(__file__)), '..'))
 static_path = os.path.join(base_dir, 'static')
@@ -34,7 +34,7 @@ else:
 
 preferences = pdict(os.path.join(config_path, 'preferences.json'), config['user']['preferences'])
 ui = pdict(os.path.join(config_path, 'ui.json'), config['user']['ui'])
-lists_cache = pdict(os.path.join(config_path, 'lists_cache.json'), {})
+list_cache = pdict(os.path.join(config_path, 'list_cache.json'), {})
 
 server = pdict(os.path.join(config_path, 'server.json'))
 server_defaults = {
diff --git a/oml/user/models.py b/oml/user/models.py
index cc6134d..01e1bf0 100644
--- a/oml/user/models.py
+++ b/oml/user/models.py
@@ -302,8 +302,8 @@ class List(db.Model):
 
     def items_count(self):
         key = self.find_id
-        if key in settings.lists_cache:
-            value = settings.lists_cache[key]
+        if key in settings.list_cache:
+            value = settings.list_cache[key]
         else:
             from item.models import Item
             if self._query:
@@ -311,7 +311,7 @@ class List(db.Model):
                 value = Parser(Item).find({'query': data}).count()
             else:
                 value = len(self.items)
-            settings.lists_cache[key] = value
+            settings.list_cache[key] = value
         return value
 
     def json(self):