diff --git a/.gitignore b/.gitignore
index f6c1e9f..c917f5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,4 @@ docs/blog/preview-*.png
 docs/blog/diagram-sources/node_modules/
 docs/blog/diagram-sources/out/
 !data/README.md
+.DS_Store