diff --git a/HACKING.md b/HACKING.md
index 2bdb32f8..cf7fe101 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -28,6 +28,8 @@ Please follow the these guidelines. Some are just preference, others are good pr
 - jQuery is your friend
 - indent using two spaces
 - opening brace on the same line with a space after the if/for/etc: `if(blub) {`
+- else clauses: `} else if(blub) {` or `} else {`
+- comments: `// this is a comment`
 - there is no length limit on lines, but try to keep them short where suitable