diff --git a/packages/effect-fc/src/Lens.ts b/packages/effect-fc/src/Lens.ts
index 666f5d6..e5e754e 100644
--- a/packages/effect-fc/src/Lens.ts
+++ b/packages/effect-fc/src/Lens.ts
@@ -139,7 +139,7 @@ export const mapEffect: {
     )),
 }))
 
-export const mapStructAt: {
+export const mapStructField: {
     <A extends object, K extends keyof A, ER, EW, RR, RW>(
         self: Lens<A, ER, EW, RR, RW>,
         key: K,
@@ -296,11 +296,11 @@ Effect.gen(function*() {
 
     const myValueLens = ref.pipe(
         fromSubscriptionRef,
-        mapStructAt("values"),
+        mapStructField("values"),
         mapArrayAt(1),
     )
 
-    const myValueLens2 = mapArrayAt(mapStructAt(fromSubscriptionRef(ref), "values"), 1)
+    const myValueLens2 = mapArrayAt(mapStructField(fromSubscriptionRef(ref), "values"), 1)
 
     console.log(yield* ref.get, yield* myValueLens.get)
     yield* set(myValueLens, 22)