diff --git a/examples/route_guide.proto b/examples/route_guide.proto
index 4c7be175..44211282 100644
--- a/examples/route_guide.proto
+++ b/examples/route_guide.proto
@@ -29,7 +29,7 @@
 
 syntax = "proto3";
 
-option java_package = "ex.grpc";
+option java_package = "io.grpc.examples";
 
 package examples;