diff --git a/tools/README.md b/tools/README.md
index 70e604fa3eea..e1ce96a4e4c8 100644
--- a/tools/README.md
+++ b/tools/README.md
@@ -240,7 +240,7 @@ canonical,fortio2,echo1,1200,1s,24,0.003420898,0.086621239,0.0248239801951,0.020
 ```
 
 To test the affects of your change, simply update your cluster with your binaries by following the
-[Developer Guide](https://github.com/istio/istio/blob/master/DEV-GUIDE.md) and rerun the tests again. To ensure
+[Developer Guide](https://github.com/istio/istio/wiki/Dev-Guide) and rerun the tests again. To ensure
 you're tracking the results of your changes correctly, you can explicitly specify a label:
 
 ```