diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 07df5af..4fa0bf2 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -38,6 +38,9 @@ Some pull request guidelines:
 - Fill out the pull request description with a summary of what your patch does,
   key changes that have been made, and any further points of discussion, if
   applicable.
+- Title your pull request with a brief description of what it's changing.
+  "Fixes #123" is a good comment to add to the description, but makes for an
+  unclear title on its own.
 
 ### Development Environment