diff --git a/gluon/contrib/memcache/__init__.py b/gluon/contrib/memcache/__init__.py
index 9f85ec57..a2a095dd 100644
--- a/gluon/contrib/memcache/__init__.py
+++ b/gluon/contrib/memcache/__init__.py
@@ -15,7 +15,7 @@ from gluon import current
 DEFAULT_TIME_EXPIRE = 300 # seconds (must be the same as cache.ram)
 
 def MemcacheClient(*a, **b):
-    if not hasattr(current,'__mc_instance'):
+    if not hasattr(current,'__memcache_client'):
         current.__memcache_client = MemcacheClientObj(*a, **b)
     return current.__memcache_client