diff --git a/.Sanitize b/.Sanitize
index 7ce7939471a..d15a8b9c040 100644
--- a/.Sanitize
+++ b/.Sanitize
@@ -26,6 +26,7 @@ Things-to-keep:
 ChangeLog
 Makefile.in
 README
+autoconf
 bfd
 binutils
 bison