diff --git a/docs/Formula-Cookbook.md b/docs/Formula-Cookbook.md
index d18f91c6f8..c141675db5 100644
--- a/docs/Formula-Cookbook.md
+++ b/docs/Formula-Cookbook.md
@@ -280,6 +280,7 @@ A good example is [`tinyxml2`](https://github.com/Homebrew/homebrew-core/blob/ma
 * If the software cannot function without credentials or requires a virtual machine, docker instance, etc. to run, a test could be to try to connect with invalid credentials (or without credentials) and confirm that it fails as expected.
 * Homebrew comes with a number of [standard test fixtures](https://github.com/Homebrew/brew/tree/master/Library/Homebrew/test/support/fixtures), including numerous sample images, sounds, and documents in various formats. You can get the file path to a test fixture with `test_fixtures("test.svg")`.
 * If your test requires a test file that isn't a standard test fixture, you can install it from a source repository during the `test` phase with a resource block, like this:
+
 ```ruby
 resource("testdata") do
   url "https://example.com/input.foo"