diff --git a/lib/docs/core/manifest.rb b/lib/docs/core/manifest.rb
index cc7ff49f..624d2b81 100644
--- a/lib/docs/core/manifest.rb
+++ b/lib/docs/core/manifest.rb
@@ -21,7 +21,7 @@ module Docs
     end
 
     def to_json
-      JSON.generate(as_json)
+      JSON.pretty_generate(as_json)
     end
   end
 end
diff --git a/test/lib/docs/core/manifest_test.rb b/test/lib/docs/core/manifest_test.rb
index 56c9d416..16484a70 100644
--- a/test/lib/docs/core/manifest_test.rb
+++ b/test/lib/docs/core/manifest_test.rb
@@ -78,7 +78,7 @@ class ManifestTest < MiniTest::Spec
   describe "#to_json" do
     it "returns the JSON string for #as_json" do
       stub(manifest).as_json { { test: 'ok' } }
-      assert_equal '{"test":"ok"}', manifest.to_json
+      assert_equal "{\n  \"test\": \"ok\"\n}", manifest.to_json
     end
   end
 end