diff --git a/sys/cam/cam_xpt.c b/sys/cam/cam_xpt.c
--- a/sys/cam/cam_xpt.c
+++ b/sys/cam/cam_xpt.c
@@ -1191,7 +1191,7 @@
 	if (proto)
 		proto->ops->denounce(path->device);
 	else
-		printf("%s%d: Unknown protocol device %d\n",
+		printf("%s%d: Unknown protocol device %d",
 		    periph->periph_name, periph->unit_number,
 		    path->device->protocol);
 	if (path->device->serial_num_len > 0)