diff --git a/.gitattributes b/.gitattributes
index 984945c..6648bae 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -11,6 +11,7 @@ tmp export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
 build-abnfgen.sh export-ignore
+CLAUDE.md export-ignore
 CODE_OF_CONDUCT.md export-ignore
 Makefile export-ignore
 phpstan-baseline.neon export-ignore
diff --git a/CLAUDE.MD b/CLAUDE.md
similarity index 100%
rename from CLAUDE.MD
rename to CLAUDE.md