diff --git a/header.md b/header.md
index 1f506a7579857d8cafede5998be96569c04053c9..ac0fc4a1992b1c845065237a7dae447de6f61f4b 100644
--- a/header.md
+++ b/header.md
@@ -7,6 +7,7 @@ documentclass: scrartcl
 classoption:
   - a4paper
   - 11pt
+#   - twocolumn
 fontfamily: libertinus
 # Do not use libertinus monospace font
 fontfamilyoptions: