diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
index f931245fda4..353a4e667c6 100644
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -140,7 +140,6 @@ struct sx allproc_lock;
 struct sx proctree_lock;
 struct mtx ppeers_lock;
 uma_zone_t proc_zone;
-uma_zone_t ithread_zone;
 
 int kstack_pages = KSTACK_PAGES;
 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0, "");