diff --git a/docs/.gitignore b/docs/.gitignore
index 270dd7f731332..4e0107aea41c7 100644
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -6,3 +6,4 @@ ruby2/.bundle/
 ruby2/.rubydeps/
 public/
 resources/
+.hugo_build.lock