diff --git a/lib/iscsi/acceptor.c b/lib/iscsi/acceptor.c
index b40175f48..be6051950 100644
--- a/lib/iscsi/acceptor.c
+++ b/lib/iscsi/acceptor.c
@@ -63,7 +63,7 @@ spdk_iscsi_portal_accept(void *arg)
 			sock = rc;
 			rc = spdk_iscsi_conn_construct(portal, sock);
 			if (rc < 0) {
-				close(sock);
+				spdk_sock_close(sock);
 				SPDK_ERRLOG("spdk_iscsi_connection_construct() failed\n");
 				break;
 			}
diff --git a/lib/iscsi/portal_grp.c b/lib/iscsi/portal_grp.c
index 654b175f9..33af5b431 100644
--- a/lib/iscsi/portal_grp.c
+++ b/lib/iscsi/portal_grp.c
@@ -155,7 +155,7 @@ spdk_iscsi_portal_close(struct spdk_iscsi_portal *p)
 		SPDK_DEBUGLOG(SPDK_TRACE_NET, "close portal (%s, %s)\n",
 			      p->host, p->port);
 		spdk_iscsi_acceptor_stop(p);
-		close(p->sock);
+		spdk_sock_close(p->sock);
 		p->sock = -1;
 	}
 }