diff --git a/tools/include.txt b/tools/include.txt
index ce05a9768a..3efde37620 100644
--- a/tools/include.txt
+++ b/tools/include.txt
@@ -37,6 +37,7 @@
 ^third_party/depot_tools/cpplint.py
 ^third_party/googletest/src/googletest/include/gtest/gtest_prod.h
 ^third_party/modp_b64
+^third_party/nasm
 ^third_party/protobuf/mirclient*
 ^third_party/protobuf/src
 ^third_party/tcmalloc/gperftools-2.0/chromium