diff --git a/src/pv/loop.c b/src/pv/loop.c
index 948593a..9da28cd 100644
--- a/src/pv/loop.c
+++ b/src/pv/loop.c
@@ -594,6 +594,7 @@ int pv_main_loop(pvstate_t state)
  * Returns nonzero on error.
  *
  * TODO: if more than one PID is being watched, display the PID as well.
+ * TODO: re-add "%N" after receiving a remote update, e.g. "-R pid -u block".
  */
 int pv_watchfd_loop(pvstate_t state)
 {