diff --git a/packages/effect-fc-next/src/ScopeRegistry.ts b/packages/effect-fc-next/src/ScopeRegistry.ts
index 0bdee76..1506987 100644
--- a/packages/effect-fc-next/src/ScopeRegistry.ts
+++ b/packages/effect-fc-next/src/ScopeRegistry.ts
@@ -11,7 +11,7 @@ export interface ScopeRegistryService {
     commit(key: ScopeRegistryService.Key): Effect.Effect<ScopeRegistryService.Entry, Cause.NoSuchElementError>
     release(key: ScopeRegistryService.Key): Effect.Effect<ScopeRegistryService.Entry, Cause.NoSuchElementError>
 
-    readonly run: Effect.Effect<void>
+    readonly run: Effect.Effect<void, never, Scope.Scope>
 }
 
 export declare namespace ScopeRegistryService {
@@ -81,19 +81,20 @@ export class ScopeRegistryServiceImpl implements ScopeRegistryService {
         )
     }
 
-    get run(): Effect.Effect<void> {
-        return SubscriptionRef.changes(this.ref).pipe(
-            Stream.switchMap(entries => Option.match(this.getNextExpiration(entries), {
-                onNone: () => Stream.never,
-                onSome: expiresAt => Stream.fromEffect(DateTime.now.pipe(
-                    Effect.flatMap(now => DateTime.isLessThan(now, expiresAt)
-                        ? Effect.sleep(DateTime.distance(now, expiresAt))
-                        : Effect.void),
-                    Effect.andThen(Effect.uninterruptible(this.closeExpired)),
-                )),
-            })),
-            Stream.runDrain,
-            Effect.ensuring(this.dispose),
+    get run(): Effect.Effect<void, never, Scope.Scope> {
+        return Effect.addFinalizer(() => this.dispose).pipe(
+            Effect.andThen(SubscriptionRef.changes(this.ref).pipe(
+                Stream.switchMap(entries => Option.match(this.getNextExpiration(entries), {
+                    onNone: () => Stream.never,
+                    onSome: expiresAt => Stream.fromEffect(DateTime.now.pipe(
+                        Effect.flatMap(now => DateTime.isLessThan(now, expiresAt)
+                            ? Effect.sleep(DateTime.distance(now, expiresAt))
+                            : Effect.void),
+                        Effect.andThen(Effect.uninterruptible(this.closeExpired)),
+                    )),
+                })),
+                Stream.runDrain,
+            )),
             this.runSemaphore.withPermit,
         )
     }