diff --git a/.gitignore b/.gitignore
index 0e00a27cbf04d..5f2bf5a0fcde3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -237,5 +237,8 @@ storage/mroonga/vendor/groonga/src/groonga
 storage/mroonga/vendor/groonga/src/groonga-benchmark
 storage/mroonga/vendor/groonga/src/suggest/groonga-suggest-create-dataset
 
+# macOS garbage
+.DS_Store
+
 # QtCreator && CodeBlocks
 *.cbp