diff --git a/tests/isc/netmgr_common.c b/tests/isc/netmgr_common.c
index 62c9ed74eb..3d57d940d0 100644
--- a/tests/isc/netmgr_common.c
+++ b/tests/isc/netmgr_common.c
@@ -334,6 +334,7 @@ connect_read_cb(isc_nmhandle_t *handle, isc_result_t eresult,
 	case ISC_R_SHUTTINGDOWN:
 	case ISC_R_CANCELED:
 	case ISC_R_CONNECTIONRESET:
+	case ISC_R_CONNREFUSED:
 		break;
 	default:
 		fprintf(stderr, "%s(%p, %s, %p)\n", __func__, handle,