diff --git a/README.md b/README.md
index 138025a..b4b89be 100644
--- a/README.md
+++ b/README.md
@@ -199,10 +199,11 @@ Here's an MP3 test file you can [download](https://raw.githubusercontent.com/dav
         - Click `Unspecified` in the top right to set your location
         - On the home page, under *Satellites* click `ISS`
         - Under *Passes to include* click `all`
-1. **OPTIONAL:** Before you leave your ground station overnight. Run these commands to increase the process priority for the main three programs we're using in this setup.
+1. **OPTIONAL:** Before you leave your ground station overnight. Run these commands to increase the process priority for the main four programs we're using in this setup.
     - Start > Accessories > Terminal
     ```
     sudo renice -1 $(pgrep rtl_fm)
+    sudo renice -1 $(pgrep play)
     sudo renice -1 $(pgrep qsstv)
     sudo renice -1 $(pgrep doppler)
     ```