diff --git a/update-makefiles.sh b/update-makefiles.sh
new file mode 100755
index 0000000..4e17f64
--- /dev/null
+++ b/update-makefiles.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# TODO(b/33276472)
+
+if [ ! -d system/libhidl ] ; then
+  echo "Where is system/libhidl?";
+  exit 1;
+fi
+
+#manager
+hidl-gen -Lmakefile -r android.hidl:system/libhidl/transport android.hidl.manager@1.0
+hidl-gen -Landroidbp -r android.hidl:system/libhidl/transport android.hidl.manager@1.0
+
+#memory
+hidl-gen -Lmakefile -r android.hidl:system/libhidl/transport android.hidl.memory@1.0
+hidl-gen -Landroidbp -r android.hidl:system/libhidl/transport android.hidl.memory@1.0