diff --git a/docs/install/sandboxes.rst b/docs/install/sandboxes.rst
index ffef480c1a4a..155f51e891b7 100644
--- a/docs/install/sandboxes.rst
+++ b/docs/install/sandboxes.rst
@@ -303,7 +303,7 @@ of the software used to build it.::
 
   $ pwd
   src/envoy/
-  $ docker build -f example/Dockerfile-envoy-image -t envoy .
+  $ docker build -f examples/Dockerfile-envoy-image -t envoy .
 
 Now you can use this ``envoy`` image to build the any of the sandboxes if you change
 the ``FROM`` line in any dockerfile.
diff --git a/examples/front-proxy/Dockerfile-envoy-image b/examples/Dockerfile-envoy-image
similarity index 100%
rename from examples/front-proxy/Dockerfile-envoy-image
rename to examples/Dockerfile-envoy-image