diff --git a/.gitignore b/.gitignore
index 544892508..ae82a1686 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,7 @@ node_modules/
 jspm_packages/
 .npm
 package-lock.json
+tools/webfilesbuilder/package-lock.json
 
 # Output of 'npm pack'
 *.tgz