diff --git a/tools/clean_headers.sh b/tools/clean_headers.sh
new file mode 100755
index 0000000..627f646
--- /dev/null
+++ b/tools/clean_headers.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+set -eu
+
+export ANDROID_BUILD_TOP="$PWD"
+
+./bionic/libc/kernel/tools/clean_header.py -u \
+    "$1/usr/include/asm-generic/signal.h"