diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index 89e1dc8..59cfa9e 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -21,7 +21,7 @@
 	kern_hndl timer_handler;
 };
 
-extern struct kern_handlers handlinfo_kern;
+extern const struct kern_handlers handlinfo_kern;
 
 extern int ncpus;
 extern char *linux_prog;