diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 566dbb2..e74b594 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -74,7 +74,6 @@ jobs:
           keyboard_base=`echo "$keyboard" | sed 's/_\(left\|right\)//'`
 
           configfile="${GITHUB_WORKSPACE}/miryoku/custom_config.h"
-          echo '// Copyright 2021 Manna Harbour\n// https://github.com/manna-harbour/miryoku' > "$configfile"
           echo "::set-output name=configfile::$configfile"
 
           artifact_build_name="miryoku_zmk $shield ${{ matrix.board }}"