diff --git a/Install_Webex_as_root.ps1 b/Install_Webex_as_root.ps1
index 532a57e..a9a8dd3 100644
--- a/Install_Webex_as_root.ps1
+++ b/Install_Webex_as_root.ps1
@@ -1,4 +1,5 @@
 # Install Webex as root
+# Source: https://help.webex.com/en-US/article/nw5p67g/Webex-|-Installation-and-Automatic-Upgrade#Cisco_Reference.dita_de4f9295-316d-4e1c-8f47-329ddfdb984d
 
 powershell.exe -setexecutionpolicy bypass