diff --git a/.gitignore b/.gitignore
index e4d192e0ef..b475d3fb9d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ wp-tests-config.php
 /src/wp-includes/js
 /src/wp-includes/css/dist
 /src/wp-includes/css/*.min.css
+/src/wp-includes/css/*-rtl.css
 
 # Files and folders that get created in wp-content
 /src/wp-content/blogs.dir