diff --git a/packages/effect-fc/src/Lens.ts b/packages/effect-fc/src/Lens.ts
index e8ef211..14eecbd 100644
--- a/packages/effect-fc/src/Lens.ts
+++ b/packages/effect-fc/src/Lens.ts
@@ -217,11 +217,12 @@ export const updateAndGetEffect: {
 
 Effect.gen(function*() {
     const myChunkRef = yield* SubscriptionRef.make(Chunk.make(12, 38, 69) as Chunk.Chunk<number>)
-    const myChunkLens = fromSubscriptionRef(myChunkRef)
-    const chunkValueLens = mapEffect(myChunkLens, Chunk.get(1), (a, b) => Effect.succeed(Chunk.replace(a, 1, b)))
+    const chunkValueLens = myChunkRef.pipe(
+        fromSubscriptionRef,
+        mapEffect(Chunk.get(1), (a, b) => Effect.succeed(Chunk.replace(a, 1, b)))
+    )
 
     console.log(yield* myChunkRef.get, yield* chunkValueLens.get)
-    // yield* update(myChunkLens, Chunk.replace(1, 22))
     yield* set(chunkValueLens, 22)
     console.log(yield* myChunkRef.get, yield* chunkValueLens.get)
 }).pipe(