diff --git a/oml/item/api.py b/oml/item/api.py
index aecb2d6..b614a1f 100644
--- a/oml/item/api.py
+++ b/oml/item/api.py
@@ -44,7 +44,11 @@ def find(data):
     if 'group' in q:
         names = {}
         groups = {}
-        key = 'group:' + hashlib.sha1(json.dumps(data).encode('utf-8')).hexdigest()
+        _keydata = data.copy()
+        for key in ('range', 'position'):
+            if key in _keydata:
+                del _keydata[key]
+        key = 'group:' + hashlib.sha1(json.dumps(_keydata).encode('utf-8')).hexdigest()
         g = state.cache.get(key)
         if g is None:
             items = q['qs'].options(load_only('id'))