diff --git a/.gitignore b/.gitignore
index 28cf9ef526..98f4d0a328 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 /out/
 /packager/base/
 /packager/build/
+/packager/buildtools/
 /packager/docs/
 /packager/testing/gmock/
 /packager/testing/gtest/