diff --git a/README.md b/README.md
index 9272718..4713123 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,7 @@ Now you can select pulse_monitor as a recording source.
 
 Alternatively, you can use pavucontrol to do this: make sure you have set up the display to "All input devices", then select "Monitor of [your sound card]" as the recording source.
 ```
+
+```bash
+$ pactl list | grep -A 50 RUNNING | grep -E 'RUNNING|Name:|Monitor Source:' | grep Monitor.Source | head -n 1 | awk '{print $NF}'
+```