diff --git a/snippets/kakoune.nix b/snippets/kakoune.nix
index 368e91a..2ffe29f 100644
--- a/snippets/kakoune.nix
+++ b/snippets/kakoune.nix
@@ -68,6 +68,9 @@
       # highlight trailing whitespace
       add-highlighter global/trailing-whitespace regex '\h+$' 0:Error
 
+      # highlight FIXME/TODO/NOTE
+      add-highlighter global/ regex \b(TODO|FIXME|NOTE)\b 0:default+rb
+
       # don't remove trailing indent
       set global disabled_hooks .*-trim-indent
       source ${pkgs.writeText "kakoune-divider.kak" (builtins.readFile ./kakoune/divider.kak)}