diff --git a/obj/tools/ptool.c b/obj/tools/ptool.c
index c836cae..98ffd8f 100644
--- a/obj/tools/ptool.c
+++ b/obj/tools/ptool.c
@@ -7,7 +7,7 @@
 #include <properties.h>
 #include <language.h>
 
-inherit "std/thing";
+inherit "/std/secure_thing";
 
 int dump();