1 files changed, 1 insertions, 1 deletions
diff --git a/tools/template/gulpfile.js b/tools/template/gulpfile.js
index 4d78b6ad65b..e03be8dcaf3 100644
--- a/tools/template/gulpfile.js
+++ b/tools/template/gulpfile.js
@@ -60,7 +60,7 @@ gulp.task('js', function() {
   // Uglify for compression if not in DEBUG.
   if (!DEBUG) {
     return b.pipe(buffer())
-      .pipe(uglify())
+      .pipe(uglify({mangle: { except: ["data"] }}))
       .pipe(gulp.dest(BUILD));
   } else {
     return b.pipe(gulp.dest(BUILD));