diff --git a/.gitignore b/.gitignore
index ed8c35a..1d897c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /node_modules
 /src-test/actual_files
-/scratch
\ No newline at end of file
+/scratch
+package-lock.json
\ No newline at end of file
diff --git a/src-test/smith_test.js b/src-test/smith_test.js
index 453e623..8c949f0 100644
--- a/src-test/smith_test.js
+++ b/src-test/smith_test.js
@@ -199,7 +199,7 @@ describe('An empty array', function () {
 
     it('has no errors', spritesmithUtils.assertNoError());
     it('renders an empty spritesheet', function () {
-      assert.deepEqual(this.result.image, new Buffer(0));
+      assert.deepEqual(this.result.image, Buffer.alloc(0));
     });
     it('returns an empty coordinate mapping', function () {
       assert.deepEqual(this.result.coordinates, {});