diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index fdf3d90..790720f 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -2134,6 +2134,7 @@ unp_gc(__unused void *arg, int pending)
 				KASSERT(i <= unp_unreachable,
 				    ("unp_gc: incorrect unreachable count."));
 			}
+	unp_unreachable = i;
 	UNP_LIST_UNLOCK();
 
 	/*