diff --git a/README.md b/README.md
index 6efa72a..b7bda93 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [Callbag](https://github.com/callbag/callbag) proxy useful for solving circular dependencies between sources.
 
-```
+```js
 const proxy = makeProxy();
 
 // later