diff --git a/gdb/.Sanitize b/gdb/.Sanitize
index 6676a99c04..967fcc2584 100644
--- a/gdb/.Sanitize
+++ b/gdb/.Sanitize
@@ -222,6 +222,7 @@ parser-defs.h
 partial-stab.h
 printcmd.c
 procfs.c
+ptx4-nat.c
 pyr-pinsn.c
 pyr-tdep.c
 pyr-xdep.c