diff --git a/windows/security/application-security/application-isolation/toc.yml b/windows/security/application-security/application-isolation/toc.yml
index db3200f4a3..c2de68aab3 100644
--- a/windows/security/application-security/application-isolation/toc.yml
+++ b/windows/security/application-security/application-isolation/toc.yml
@@ -13,4 +13,4 @@ items:
 - name: App containers 🔗
   href: /virtualization/windowscontainers/about
 - name: Windows Sandbox
-  href: windows-sandbox/toc.yml
\ No newline at end of file
+  href: windows-sandbox/index.md
\ No newline at end of file
diff --git a/windows/security/application-security/application-isolation/windows-sandbox/windows-sandbox-overview.md b/windows/security/application-security/application-isolation/windows-sandbox/index.md
similarity index 100%
rename from windows/security/application-security/application-isolation/windows-sandbox/windows-sandbox-overview.md
rename to windows/security/application-security/application-isolation/windows-sandbox/index.md