diff --git a/src/main.c b/src/main.c
index 7f3d224..8a68ba5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,4 @@
-/* Copyright (C) vx_clutch
+/* Copyright (C) vx-clutch
  *
  * This file is part of yait
  *
diff --git a/tools/add-copyright-header b/tools/add-copyright-header
new file mode 100755
index 0000000..a5ebb45
--- /dev/null
+++ b/tools/add-copyright-header
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+HEADER=$(cat <<EOF
+/* Copyright (C) vx-clutch
+ * 
+ * This file is part of yait
+ *
+ * This project and file is licenced under the BSD-3-Clause licence.
+ * <https://opensource.org/licence/bsd-3-clause>
+ */
+EOF
+)
+
+len=${#}
+
+i=0
+for file in "$@"
+do
+
+i=$((i + 1))
+printf 'Adding header [%d/%d] %s\n' $i $len $file
+
+if grep -qF "$HEADER" "$file"; then
+    continue
+fi
+
+tmp=$(mktemp)
+printf '%s\n\n' "$HEADER" > "$tmp"
+cat $file >> "$tmp"
+mv "$tmp" $file
+
+done
diff --git a/tools/check-copyright-headers b/tools/check-copyright-headers
new file mode 100644
index 0000000..9ad9f0d
--- /dev/null
+++ b/tools/check-copyright-headers
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+find . -name "*.c" -exec add-copyright-header {} \;
+find . -name "*.h" -exec add-copyright-header {} \;