diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c
index 675c93dd4266..ba61a8cc0eae 100644
--- a/sys/netinet/sctputil.c
+++ b/sys/netinet/sctputil.c
@@ -2553,8 +2553,8 @@ sctp_add_pad_tombuf(struct mbuf *m, int padlen)
 		tmp = sctp_get_mbuf_for_msg(padlen, 0, M_DONTWAIT, 1, MT_DATA);
 		if (tmp == NULL) {
 			/* Out of space GAK! we are in big trouble. */
-			SCTP_LTRACE_ERR_RET_PKT(m, NULL, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL);
-			return (ENOSPC);
+			SCTP_LTRACE_ERR_RET_PKT(m, NULL, NULL, NULL, SCTP_FROM_SCTPUTIL, ENOBUFS);
+			return (ENOBUFS);
 		}
 		/* setup and insert in middle */
 		SCTP_BUF_LEN(tmp) = padlen;