diff --git a/devices/surface-hub/prepare-your-environment-for-surface-hub.md b/devices/surface-hub/prepare-your-environment-for-surface-hub.md
index cfb912384d..98d3cd4e4f 100644
--- a/devices/surface-hub/prepare-your-environment-for-surface-hub.md
+++ b/devices/surface-hub/prepare-your-environment-for-surface-hub.md
@@ -38,7 +38,7 @@ Additionally, note that Surface Hub requires the following open ports:
 If you are using Surface Hub with Skype for Business, you will need to open additional ports. Please follow the guidance below:
 - If you use Skype for Business Online, see [Office 365 IP URLs and IP address ranges](https://support.office.com/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US).
 - If you use Skype for Business Server, see [Skype for Business Server: Ports and protocols for internal servers](https://docs.microsoft.com/SkypeForBusiness/plan-your-deployment/network-requirements/ports-and-protocols?toc=/SkypeForBusiness/toc.json&bc=/SkypeForBusiness/breadcrumb/toc.json). 
-- If you use a hybrid of Skype for Business Online and Skype for Business Server, you need to open all documented ports from [Office 365 IP URLs and IP address ranges](https://support.office.com/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US) and [Skype for Business Server: Ports and protocols for internal servers](https://docs.microsoft.com/en-us/SkypeForBusiness/plan-your-deployment/network-requirements/ports-and-protocols?toc=/SkypeForBusiness/toc.json&bc=/SkypeForBusiness/breadcrumb/toc.json).
+- If you use a hybrid of Skype for Business Online and Skype for Business Server, you need to open all documented ports from [Office 365 IP URLs and IP address ranges](https://support.office.com/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US) and [Skype for Business Server: Ports and protocols for internal servers](https://docs.microsoft.com/SkypeForBusiness/plan-your-deployment/network-requirements/ports-and-protocols?toc=/SkypeForBusiness/toc.json&bc=/SkypeForBusiness/breadcrumb/toc.json).
 
 Microsoft collects diagnostic data to help improve your Surface Hub experience. Add these sites to your allow list:
 - Diagnostic data client endpoint: `https://vortex.data.microsoft.com/`