diff --git a/packages/core/src/node/context.ts b/packages/core/src/node/context.ts
index 93aa4e68..dc8f8004 100644
--- a/packages/core/src/node/context.ts
+++ b/packages/core/src/node/context.ts
@@ -60,7 +60,7 @@ export async function createDevToolsContext(
   // json-render factory
   let jrCounter = 0
   context.createJsonRenderer = (initialSpec: JsonRenderSpec): JsonRenderer => {
-    const stateKey = `__jr:${jrCounter++}`
+    const stateKey = `devtoolskit:internal:json-render:${jrCounter++}`
     const statePromise = rpcHost.sharedState.get(stateKey as any, {
       initialValue: initialSpec as any,
     })