diff --git a/tests/integration/test_cli.sh b/tests/integration/test_cli.sh
index d0f6f3a1b..c14f4b292 100755
--- a/tests/integration/test_cli.sh
+++ b/tests/integration/test_cli.sh
@@ -68,6 +68,7 @@ test_cancel_command() {
     send_command_to_commissioner "borderagent discover" "CANCELLED" &
     sleep 1
 
+    ## send SIGINT to the commissioner CLI to cancel outstanding requests ('borderagent discover' in this case).
     pkill --signal SIGINT "${COMMISSIONER_CLI}"
 
     stop_commissioner