diff --git a/.codespellrc b/.codespellrc
index 4118a4f8..a23516ce 100644
--- a/.codespellrc
+++ b/.codespellrc
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: 0BSD
+
 [codespell]
 
 # Skip all translation files and a few other autogenerated files.