diff --git a/packages/effect-fc/src/Result.ts b/packages/effect-fc/src/Result.ts
index a47f747..ad2cf69 100644
--- a/packages/effect-fc/src/Result.ts
+++ b/packages/effect-fc/src/Result.ts
@@ -15,10 +15,6 @@ export type Final<A, E = never, P = never> = (Success<A> | Failure<E>) & ({} | F
 export type Flags<P = never> = WillFetch | WillRefresh | Refreshing<P>
 
 export declare namespace Result {
-    export interface Prototype extends Pipeable.Pipeable, Equal.Equal {
-        readonly [ResultTypeId]: ResultTypeId
-    }
-
     export type Success<R extends Result<any, any, any>> = [R] extends [Result<infer A, infer _E, infer _P>] ? A : never
     export type Failure<R extends Result<any, any, any>> = [R] extends [Result<infer _A, infer E, infer _P>] ? E : never
     export type Progress<R extends Result<any, any, any>> = [R] extends [Result<infer _A, infer _E, infer P>] ? P : never
@@ -28,21 +24,21 @@ export declare namespace Flags {
     export type Keys = keyof WillFetch & WillRefresh & Refreshing<any>
 }
 
-export interface Initial extends Result.Prototype {
+export interface Initial extends ResultPrototype {
     readonly _tag: "Initial"
 }
 
-export interface Running<P = never> extends Result.Prototype {
+export interface Running<P = never> extends ResultPrototype {
     readonly _tag: "Running"
     readonly progress: P
 }
 
-export interface Success<A> extends Result.Prototype {
+export interface Success<A> extends ResultPrototype {
     readonly _tag: "Success"
     readonly value: A
 }
 
-export interface Failure<E = never> extends Result.Prototype {
+export interface Failure<E = never> extends ResultPrototype {
     readonly _tag: "Failure"
     readonly cause: Cause.Cause<E>
 }
@@ -61,7 +57,11 @@ export interface Refreshing<P = never> {
 }
 
 
-const ResultPrototype = Object.freeze({
+export interface ResultPrototype extends Pipeable.Pipeable, Equal.Equal {
+    readonly [ResultTypeId]: ResultTypeId
+}
+
+export const ResultPrototype: ResultPrototype = Object.freeze({
     ...Pipeable.Prototype,
     [ResultTypeId]: ResultTypeId,
 
@@ -95,7 +95,7 @@ const ResultPrototype = Object.freeze({
             Hash.cached(this),
         )
     },
-} as const satisfies Result.Prototype)
+} as const)
 
 
 export const isResult = (u: unknown): u is Result<unknown, unknown, unknown> => Predicate.hasProperty(u, ResultTypeId)