diff --git a/additions/juggler/protocol/Protocol.js b/additions/juggler/protocol/Protocol.js
index 6c9b700..e1ccc73 100644
--- a/additions/juggler/protocol/Protocol.js
+++ b/additions/juggler/protocol/Protocol.js
@@ -577,7 +577,7 @@ const Network = {
   },
 };
 
-const Runtime = {
+const _Runtime = {
   targets: ['page'],
   types: runtimeTypes,
   events: {