diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index aeaf852..c34dc94 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,6 +4,8 @@ How to Contribute
 Inbucket encourages third-party patches. It's valuable to know how other
 developers are using the product.
 
+**tl;dr:** File pull requests against the `develop` branch, not `master`!
+
 
 ## Getting Started