diff --git a/.gitignore b/.gitignore
index ae15a5e43..7fea491b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@ node_modules
 .home
 coverage
 **/.DS_Store
+*.bak
 
 # Code packages itself here.
 /lib/vscode-reh-web-*