diff --git a/Troubleshooting-Guide.md b/Troubleshooting-Guide.md
index e9be7e2..4090430 100644
--- a/Troubleshooting-Guide.md
+++ b/Troubleshooting-Guide.md
@@ -29,6 +29,12 @@ if the process is running, let's dig deeper. `ctrld` will spawn one or more DNS
 netstat -tupln | grep ctrld
 ```
 
+On MacOS you need to run this instead:
+
+```
+sudo lsof -iUDP -nP | grep ctrld
+```
+
 You may need to prefix the above command with `sudo` if you're not using a root user. The output may look something like this
 
 ```