diff --git a/sbin/pfctl/pfctl_altq.c b/sbin/pfctl/pfctl_altq.c
index 86e7b15f6f84..e9218e0b2d65 100644
--- a/sbin/pfctl/pfctl_altq.c
+++ b/sbin/pfctl/pfctl_altq.c
@@ -299,7 +299,7 @@ eval_pfaltq(struct pfctl *pf, struct pf_altq *pa, struct node_queue_bw *bw,
 			size = 4;
 		else if (rate <= 200 * 1000 * 1000)
 			size = 8;
-		else if (rate <= 2500 * 1000 * 1000)
+		else if (rate <= 2500 * 1000 * 1000ULL)
 			size = 24;
 		else
 			size = 128;