diff --git a/sys/netinet/sctp_output.c b/sys/netinet/sctp_output.c
index ce6a7b85970d..d648d1832644 100644
--- a/sys/netinet/sctp_output.c
+++ b/sys/netinet/sctp_output.c
@@ -10959,7 +10959,7 @@ sctp_lower_sosend(struct socket *so,
 	int free_cnt_applied = 0;
 	int un_sent = 0;
 	int now_filled = 0;
-	int inqueue_bytes = 0;
+	unsigned int inqueue_bytes = 0;
 	struct sctp_block_entry be;
 	struct sctp_inpcb *inp;
 	struct sctp_tcb *stcb = NULL;