diff --git a/src/posts.js b/src/posts.js
index b5b24208b2..6a98d8ab50 100644
--- a/src/posts.js
+++ b/src/posts.js
@@ -379,6 +379,8 @@ var async = require('async'),
 	};
 
 	Posts.getPostsFields = function(pids, fields, callback) {
+		pids = pids : [];
+		
 		var keys = pids.map(function(pid) {
 			return 'post:' + pid;
 		});