diff --git a/devices/surface/index.md b/devices/surface/index.md
index 20d2c00e79..e559820d25 100644
--- a/devices/surface/index.md
+++ b/devices/surface/index.md
@@ -31,6 +31,7 @@ For more information on planning for, deploying, and managing Surface devices in
 | [Enable PEAP, EAP-FAST, and Cisco LEAP on Surface devices](enable-peap-eap-fast-and-cisco-leap-on-surface-devices.md) | Find out how to enable support for PEAP, EAP-FAST, or Cisco LEAP protocols on your Surface device. |
 | [Manage Surface UEFI settings](manage-surface-uefi-settings.md) | Use Surface UEFI settings to enable or disable devices, configure security settings, and adjust Surface device boot settings. |
 | [Surface Enterprise Management Mode](surface-enterprise-management-mode.md) | See how this feature of Surface devices with Surface UEFI allows you to secure and manage firmware settings within your organization. |
+| [Surface Diagnostic Toolkit for Business](surface-diagnostic-toolkit-business.md) | Learn how to investigate, troubleshoot, and resolve hardware, software, and firmware issues with Surface devices. |
 | [Surface Data Eraser](microsoft-surface-data-eraser.md) | Find out how the Microsoft Surface Data Eraser tool can help you securely wipe data from your Surface devices. |
 | [Top support solutions for Surface devices](support-solutions-surface.md) | These are the top Microsoft Support solutions for common issues experienced using Surface devices in an enterprise. |
 | [Change history for Surface documentation](change-history-for-surface.md) | This topic lists new and updated topics in the Surface documentation library. |