diff --git a/packages/effect-fc/src/Result.ts b/packages/effect-fc/src/Result.ts
index ad2cf69..70ecbe7 100644
--- a/packages/effect-fc/src/Result.ts
+++ b/packages/effect-fc/src/Result.ts
@@ -1,4 +1,4 @@
-import { Cause, Context, Data, Effect, Equal, Exit, type Fiber, Hash, Layer, Match, Pipeable, Predicate, PubSub, pipe, Ref, type Scope, Stream, Subscribable } from "effect"
+import { Cause, Context, Data, Effect, Equal, Exit, type Fiber, Hash, Layer, Match, pipe, Pipeable, Predicate, PubSub, Ref, type Scope, Stream, Subscribable } from "effect"
 
 
 export const ResultTypeId: unique symbol = Symbol.for("@effect-fc/Result/Result")
@@ -215,17 +215,17 @@ export namespace unsafeForkEffect {
     }
 }
 
-export const unsafeForkEffect = <A, E, R, P = never>(
+export const unsafeForkEffect = Effect.fnUntraced(function* <A, E, R, P = never>(
     effect: Effect.Effect<A, E, R>,
     options?: unsafeForkEffect.Options<NoInfer<A>, NoInfer<E>, P>,
-): Effect.Effect<
+): Effect.fn.Return<
     readonly [result: Subscribable.Subscribable<Result<A, E, P>, never, never>, fiber: Fiber.Fiber<A, E>],
     never,
     Scope.Scope | unsafeForkEffect.OutputContext<A, E, R, P>
-> => Effect.Do.pipe(
-    Effect.bind("ref", () => Ref.make(options?.initial ?? initial<A, E, P>())),
-    Effect.bind("pubsub", () => PubSub.unbounded<Result<A, E, P>>()),
-    Effect.bind("fiber", ({ ref, pubsub }) => Effect.forkScoped(State<A, E, P>().pipe(
+> {
+    const ref = yield* Ref.make(options?.initial ?? initial<A, E, P>())
+    const pubsub = yield* PubSub.unbounded<Result<A, E, P>>()
+    const fiber = yield* (Effect.forkScoped(State<A, E, P>().pipe(
         Effect.andThen(state => state.set(
             (isFinal(options?.initial) && hasWillRefreshFlag(options?.initial))
                 ? refreshing(options.initial, options?.initialProgress) as Result<A, E, P>
@@ -244,8 +244,9 @@ export const unsafeForkEffect = <A, E, R, P = never>(
                 set: v => Effect.andThen(Ref.set(ref, v), PubSub.publish(pubsub, v))
             })),
         )),
-    ))),
-    Effect.map(({ ref, pubsub, fiber }) => [
+    )) as Effect.Effect<Fiber.Fiber<A, E>, never, Scope.Scope | unsafeForkEffect.OutputContext<A, E, R, P>>)
+
+    return [
         Subscribable.make({
             get: Ref.get(ref),
             changes: Stream.unwrapScoped(Effect.map(
@@ -254,12 +255,8 @@ export const unsafeForkEffect = <A, E, R, P = never>(
             )),
         }),
         fiber,
-    ]),
-) as Effect.Effect<
-    readonly [result: Subscribable.Subscribable<Result<A, E, P>, never, never>, fiber: Fiber.Fiber<A, E>],
-    never,
-    Scope.Scope | unsafeForkEffect.OutputContext<A, E, R, P>
->
+    ] as const
+})
 
 export namespace forkEffect {
     export type InputContext<R, P> = R extends Progress<infer X> ? [X] extends [P] ? R : never : R