diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 8e1b5c57..31f55453 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -6,3 +6,6 @@ Before creating a pull request, do the following.
 
 Have fun!
 -->
+
+Where are the tests? Have you added tests? Have you updated the tests? Read the
+comment above and the documentation referenced in it first. Write tests!