diff --git a/wp-ffpc-nginx-sample.conf b/wp-ffpc-nginx-sample.conf
index 0f79d84..f7e5e2e 100644
--- a/wp-ffpc-nginx-sample.conf
+++ b/wp-ffpc-nginx-sample.conf
@@ -127,7 +127,10 @@ MEMCACHED_SERVERS
 						set $memcached_request 0;
 				}
 
-				LOGGEDIN_EXCEPTION
+				# don't serve cached pages if user is logged in
+				if ($http_cookie ~* "wordpress_logged_in_" ) {
+					set $memcached_request 0;
+				}
 
 				if ( $memcached_request = 1) {
 						memcached_pass memcached-servers;