diff --git a/sys/dev/aac/aac_cam.c b/sys/dev/aac/aac_cam.c
index 8423f44d0ff..978b2e24593 100644
--- a/sys/dev/aac/aac_cam.c
+++ b/sys/dev/aac/aac_cam.c
@@ -397,7 +397,7 @@ aac_cam_action(struct cam_sim *sim, union ccb *ccb)
 
 	cm->cm_complete = aac_cam_complete;
 	cm->cm_private = ccb;
-	cm->cm_timestamp = time_second;
+	cm->cm_timestamp = time_uptime;
 	cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
 
 	fib->Header.XferState =