diff --git a/isso/views/comment.py b/isso/views/comment.py
index ecde525..a8d13c6 100644
--- a/isso/views/comment.py
+++ b/isso/views/comment.py
@@ -166,7 +166,6 @@ def single(app, environ, request, id):
         for key in set(rv.keys()) - FIELDS:
             rv.pop(key)
 
-        app.cache.delete('hash', id)
         logger.info('comment %i edited: %s', id, json.dumps(rv))
 
         checksum = hashlib.md5(rv["text"].encode('utf-8')).hexdigest()
@@ -178,12 +177,14 @@ def single(app, environ, request, id):
 
     if request.method == 'DELETE':
 
+        item = app.db.comments.get(id)
+        app.cache.delete('hash', item['email'] or item['remote_addr'])
+
         rv = app.db.comments.delete(id)
         if rv:
             for key in set(rv.keys()) - FIELDS:
                 rv.pop(key)
 
-        app.cache.delete('hash', id)
         logger.info('comment %i deleted', id)
 
         resp = Response(json.dumps(rv), 200, content_type='application/json')