diff --git a/source/developers/development_testing.markdown b/source/developers/development_testing.markdown
index 9884120e0ba..14dcf03c577 100644
--- a/source/developers/development_testing.markdown
+++ b/source/developers/development_testing.markdown
@@ -54,7 +54,7 @@ $ pydocstyle homeassistant/core.py
 $ py.test tests/test_core.py
 ```
 
-You can also run linting tests against all changed files, as reported by `git diff upstream/dev... --name-only`, using the `lint` script:
+You can also run linting tests against all changed files, as reported by `git diff upstream/dev... --diff-filter=d --name-only`, using the `lint` script:
 
 ```bash
 $ script/lint