diff --git a/lib/tessel/deploy.js b/lib/tessel/deploy.js
index c587e65e..66d308ad 100644
--- a/lib/tessel/deploy.js
+++ b/lib/tessel/deploy.js
@@ -215,16 +215,18 @@ actions.tarBundle = function(opts) {
   var buffers = [];
 
   if (opts.slim) {
-    console.log('Running slim...');
+    logs.info('Generating slim build.');
     return new Promise(function(resolve, reject) {
       var b = browserify(opts.resolvedEntryPoint, {
-        node: true,
-        ignoreMissing: true
+        builtins: false,
+        commondir: false,
+        browserField: false,
+        detectGlobals: false,
+        ignoreMissing: true,
       });
       b.transform(uglify);
       b.bundle(function(err, results) {
         if (err) {
-          console.log('Error');
           reject(err);
         } else {
           fs.writeFileSync(opts.slimPath, results.toString());