diff --git a/lib/server/rest.js b/lib/server/rest.js
index 00bf4a90..485a227e 100644
--- a/lib/server/rest.js
+++ b/lib/server/rest.js
@@ -174,7 +174,7 @@
                     
                     onDelete(p.name, files, query, function(error, callback) {
                         checkSendError(error, params, function() {
-                            var names = files.length ? files : p.name;
+                            var names = (files && files.length) ? files : p.name;
                             
                             if (callback)
                                 Util.exec(callback);