diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 81618aacebc..c5dcec2167e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -70,8 +70,9 @@ Please document your lint with a doc comment akin to the following:
 
 Clippy uses UI tests. UI tests check that the output of the compiler is exactly as expected.
 Of course there's little sense in writing the output yourself or copying it around.
-Therefore you can simply run `tests/ui/update-all-references.sh` and check whether
-the output looks as you expect with `git diff`. Commit all `*.stderr` files, too.
+Therefore you can simply run `tests/ui/update-all-references.sh` (after running
+`cargo test`) and check whether the output looks as you expect with `git diff`. Commit all
+`*.stderr` files, too.
 
 ### Testing manually