diff --git a/include/.Sanitize b/include/.Sanitize
index acd5ea85e81..08b43fea8ee 100644
--- a/include/.Sanitize
+++ b/include/.Sanitize
@@ -50,6 +50,7 @@ libiberty.h
 nlm
 oasys.h
 obstack.h
+os9k.h
 opcode
 wait.h