diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f9ae4ce624..64b4531b63 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -147,7 +147,7 @@ $ git rebase upstream/master
 
 Bug fixes and features **should come with tests**. Add your tests in the
 `test/parallel/` directory. For guidance on how to write a test for the Node.js
-project, see this [guide](./doc/guides/writing_tests.md). Looking at other tests
+project, see this [guide](./doc/guides/writing-tests.md). Looking at other tests
 to see how they should be structured can also help.
 
 To run the tests on Unix / OS X:
diff --git a/doc/guides/writing_tests.md b/doc/guides/writing-tests.md
similarity index 100%
rename from doc/guides/writing_tests.md
rename to doc/guides/writing-tests.md