diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -163,10 +163,10 @@
     "VM swap stats");
 
 SYSCTL_PROC(_vm, OID_AUTO, swap_reserved, CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_MPSAFE,
-    &swap_reserved, 0, sysctl_page_shift, "A", 
+    &swap_reserved, 0, sysctl_page_shift, "QU",
     "Amount of swap storage needed to back all allocated anonymous memory.");
 SYSCTL_PROC(_vm, OID_AUTO, swap_total, CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_MPSAFE,
-    &swap_total, 0, sysctl_page_shift, "A", 
+    &swap_total, 0, sysctl_page_shift, "QU",
     "Total amount of available swap storage.");
 
 static int overcommit = 0;