diff --git a/kernel/pid.c b/kernel/pid.c
index 78b3d9f..f4ad91b 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -604,5 +604,5 @@
 	atomic_dec(&init_pid_ns.pidmap[0].nr_free);
 
 	init_pid_ns.pid_cachep = KMEM_CACHE(pid,
-			SLAB_HWCACHE_ALIGN | SLAB_PANIC);
+			SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
 }