diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 9703402b4..f162ed828 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,13 +1,13 @@
-<!--
 Thank you for contributing to Zenko!
-
 Please enter applicable information below.
--->
 
 **What does this PR do, and why do we need it?**
 
 **Which issue does this PR fix?**
 
-fixes #<ISSUE>
+Fixes #<ISSUE>.
 
 **Special notes for your reviewers**:
+
+When adding new behavior tests, please follow the
+`tests/ctst/HOW_TO_WRITE_TESTS.md` guidelines.