diff --git a/gdb/config/i386/.Sanitize b/gdb/config/i386/.Sanitize
index 30e28889cc..837804e4e3 100644
--- a/gdb/config/i386/.Sanitize
+++ b/gdb/config/i386/.Sanitize
@@ -55,6 +55,7 @@ nm-i386v4.h
 nm-linux.h
 nm-sun386.h
 nm-symmetry.h
+ptx.mh
 sun386.mh
 sun386.mt
 symmetry.mh