diff --git a/elasticsearch/connection/memcached.py b/elasticsearch/connection/memcached.py
index ad1dd727..f11e6481 100644
--- a/elasticsearch/connection/memcached.py
+++ b/elasticsearch/connection/memcached.py
@@ -65,7 +65,7 @@ class MemcachedConnection(PoolingConnection):
         # try not to load the json every time
         if response and response[0] == '{' and ('"status"' in response or '"error"' in response):
             data = json.loads(response)
-            if 'status' in data and data['status'].isdigit():
+            if 'status' in data and isinstance(data['status'], int):
                 status = data['status']
             elif 'error' in data:
                 raise TransportError('N/A', data['error'])