diff --git a/Apps/Sandcastle/Sandcastle-header.js b/Apps/Sandcastle/Sandcastle-header.js
index 5c9c0ad5157..9ab0530ec2a 100644
--- a/Apps/Sandcastle/Sandcastle-header.js
+++ b/Apps/Sandcastle/Sandcastle-header.js
@@ -105,7 +105,7 @@
       )
     ) {
       window.location =
-        "https://github.com/CesiumGS/cesium/wiki/Contributor%27s-Guide";
+        "https://github.com/CesiumGS/cesium/blob/main/Documentation/Contributors/BuildGuide/README.md#quickstart";
     }
   }
 })();