diff --git a/node_modules/architect-build/npm_build.js b/node_modules/architect-build/npm_build.js
index eaebe681..8912b0df 100644
--- a/node_modules/architect-build/npm_build.js
+++ b/node_modules/architect-build/npm_build.js
@@ -199,19 +199,21 @@ dest = "/build/webkitbuilds/app.nw"
 var args = ["local","-s", "local"];
 */
 module.exports = function(options, cb) {
-    var dest = convertPath(options.dest);
+    var dest = options.dest && convertPath(options.dest);
     var root = convertPath(options.root);
     var args = options.args;
     ignore = options.ignore && function(id) {
         return options.ignore.test(id);
     };
     build(root, args, function(err, result) {
-        var serverSource = fs.readFileSync(root + "/server.js", "utf8");
-        serverSource = serverSource.replace(/^(#.*|"use strict";?|\s)*/, function(a) {
-            return a.trim() + "\n\n" + patchTemplate + "\n\n";
-        });
-        fs.writeFileSync(dest + "/server.js", serverSource, "utf8");
-        fs.writeFileSync(dest + "/module-map.json", JSON.stringify(result.moduleMap), "utf8");
+        if (dest) {
+            var serverSource = fs.readFileSync(root + "/server.js", "utf8");
+            serverSource = serverSource.replace(/^(#.*|"use strict";?|\s)*/, function(a) {
+                return a.trim() + "\n\n" + patchTemplate + "\n\n";
+            });
+            fs.writeFileSync(dest + "/server.js", serverSource, "utf8");
+            fs.writeFileSync(dest + "/module-map.json", JSON.stringify(result.moduleMap), "utf8");
+        }
         
         cb(null, result);
     });