diff --git a/.gitignore b/.gitignore
index 700df3aa03..3c44925a76 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@
 /client/css/violet.css
 /client/css/violet-vertical.css
 /tests/unit/testData/cache/*
+!/tests/unit/testData/cache/.data
 /tests/integration/config.php
 composer.phar
 vendor/
diff --git a/tests/unit/testData/cache/.data b/tests/unit/testData/cache/.data
new file mode 100644
index 0000000000..e69de29bb2