diff --git a/.gitmodules b/.gitmodules
index 41099f6fd701..c3a4e4aeca60 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,4 @@
 [submodule "BaseTools/Source/C/BrotliCompress/brotli"]
 	path = BaseTools/Source/C/BrotliCompress/brotli
 	url = https://github.com/google/brotli
+	ignore = untracked