diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
index ef255492673..acd62281491 100644
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -22445,6 +22445,7 @@ rack_output(struct tcpcb *tp)
 			return (error);
 		case ENETUNREACH:
 			counter_u64_add(rack_saw_enetunreach, 1);
+			/* FALLTHROUGH */
 		case EHOSTDOWN:
 		case EHOSTUNREACH:
 		case ENETDOWN: