diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 447f51bd..59f4b5f9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -22,6 +22,8 @@ If you encounter a bug when using Lapce, check the issues to see if anyone else
 
 If you want to write some code, develop the documentation, or otherwise work on a certain feature or bug, let us know by replying to or creating an [issue](https://github.com/lapce/lapce/issues).
 
+Run `cargo fmt --all` and `cargo clippy` on your code before submitting pull requests and fix any issues; this makes sure that the CI runs only fail on genuine build errors and not formatting/Clippy lints.
+
 We are currently in the process of improving the documentation for new developers/code contributors. Feel free to get started, or post a message on [Discord](https://discord.gg/n8tGJ6Rn6D) to see what can be done.
 
 ## Contact