diff --git a/src/ui/jttools/.gitignore b/src/ui/jttools/.gitignore
index 541a820..ee89a17 100644
--- a/src/ui/jttools/.gitignore
+++ b/src/ui/jttools/.gitignore
@@ -12,3 +12,4 @@ yarn-error.log*
 *.ntvs*
 *.njsproj
 *.sln
+package-lock.json