diff --git a/README.md b/README.md
index e1ccab9..7ea9e15 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,10 @@ with the **IOT Wifi** container.
 # prevent wpa_supplicant from starting on boot
 $ sudo systemctl mask wpa_supplicant.service
 
+# rename wpa_supplicant on the host to ensure that it is not
+# used.
+sudo mv /sbin/wpa_supplicant /sbin/no_wpa_supplicant
+
 # kill any running processes named wpa_supplicant
 $ sudo pkill wpa_supplicant
 ```