diff --git a/src/main/main.c b/src/main/main.c
index 7b671e1..b860809 100644
--- a/src/main/main.c
+++ b/src/main/main.c
@@ -316,6 +316,7 @@ static int pv__run_monitor(const char *program_name, pvstate_t state, pvside_t s
 	}
 
 	/* TODO: use other_side_pid, for ratio display. */
+	/* TODO: exchange transfer information like -Q. */
 
 	/*@-observertrans@ */
 	dummy_argv[0] = "-";