diff --git a/lib/main.js b/lib/main.js
index 76fdfc03..dade0ac8 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -223,7 +223,7 @@ Lambda.prototype._zip = function (program, codeDirectory, callback) {
 
 Lambda.prototype._nativeZip = function (program, codeDirectory, callback) {
   var zipfile = this._zipfileTmpPath(program),
-    cmd = 'zip -r ' + zipfile + ' .';
+    cmd = 'zip -x \\*build\\* -r ' + zipfile + ' .';
 
   exec(cmd, {
     cwd: codeDirectory,