diff --git a/Gulpfile.ts b/Gulpfile.ts
index b2737c243c2..bea8eb30de8 100644
--- a/Gulpfile.ts
+++ b/Gulpfile.ts
@@ -168,7 +168,7 @@ for (const i in libraryTargets) {
     gulp.task(target, false, [], function() {
         return gulp.src(sources)
             .pipe(newer(target))
-            .pipe(concat(target, { newLine: "" }))
+            .pipe(concat(target, { newLine: "\n\n" }))
             .pipe(gulp.dest("."));
     });
 }