diff --git a/.gitignore b/.gitignore
index 7a8ea8d3df..9e622fec7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -146,3 +146,4 @@ build/msbuild.log
 src/packages/
 build/tools/
 src/PrecompiledWeb/*
+npm-debug.log