diff --git a/lib/server/rest.js b/lib/server/rest.js
index 4568c470..0d641476 100644
--- a/lib/server/rest.js
+++ b/lib/server/rest.js
@@ -340,9 +340,10 @@
                     sendError(params, p.data);
                 } else {
                     from    = mellow.convertPath(files.from);
-                    to      = mellow.convertPath(files.to);
                     
-                    if (!to)
+                    if (files.to)
+                        to  = mellow.convertPath(files.to);
+                    else
                         to  = from + '.zip';
                     
                     pack.gzip(from, to, function(error) {