diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 44e56a16..c903d1a9 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,3 +1,5 @@
+**IMPORTANT: Do not submit PRs with only formatting / PEP8 / line length changes, I will close them with great prejudice.  The PEP8 checks I don't follow are intentional. PRs for minor bugfixes, typos, etc are fine.**
+
 # Summary
 
 e.g. This PR fixes ABC or adds the ability to do XYZ...