diff --git a/packages/effect-fc/src/Form.ts b/packages/effect-fc/src/Form.ts
index cebe80a..c5a02d0 100644
--- a/packages/effect-fc/src/Form.ts
+++ b/packages/effect-fc/src/Form.ts
@@ -15,7 +15,9 @@ extends Pipeable.Pipeable {
     readonly encodedValueRef: SubscriptionRef.SubscriptionRef<I>,
     readonly errorRef: SubscriptionRef.SubscriptionRef<Option.Option<ParseResult.ParseError>>,
 
-    makeFieldIssuesSubscribable<P extends PropertyPath.Paths<A>>(path: P): Subscribable.Subscribable<readonly ParseResult.ArrayFormatterIssue[]>
+    makeFieldIssuesSubscribable<const P extends PropertyPath.Paths<A>>(
+        path: P
+    ): Subscribable.Subscribable<readonly ParseResult.ArrayFormatterIssue[]>
 }
 
 
@@ -32,7 +34,7 @@ extends Pipeable.Class() implements Form<A, I, R> {
         super()
     }
 
-    makeFieldIssuesSubscribable<P extends PropertyPath.Paths<A>>(path: P) {
+    makeFieldIssuesSubscribable<const P extends PropertyPath.Paths<A>>(path: P) {
         const filter = Option.match({
             onSome: (v: ParseResult.ParseError) => Effect.andThen(
                 ParseResult.ArrayFormatter.formatError(v),
@@ -82,7 +84,7 @@ export namespace useInput {
 }
 
 export const useInput: {
-    <A, I, R, const P extends PropertyPath.Paths<I>>(
+    <A, I, R, const P extends PropertyPath.Paths<NoInfer<I>>>(
         self: Form<A, I, R>,
         path: P,
         options?: useInput.Options,
diff --git a/packages/effect-fc/src/types/PropertyPath.ts b/packages/effect-fc/src/types/PropertyPath.ts
index af47a8c..b73d24d 100644
--- a/packages/effect-fc/src/types/PropertyPath.ts
+++ b/packages/effect-fc/src/types/PropertyPath.ts
@@ -28,7 +28,7 @@ export type Paths<T, D extends number = 5, Seen = never> = readonly [] | (
     never
 )
 
-export type ValueFromPath<T, P extends readonly any[]> = P extends [infer Head, ...infer Tail]
+export type ValueFromPath<T, P extends readonly any[]> = P extends readonly [infer Head, ...infer Tail]
     ? Head extends keyof T
         ? ValueFromPath<T[Head], Tail>
         : T extends readonly any[]
diff --git a/packages/example/src/routes/form.tsx b/packages/example/src/routes/form.tsx
index d2307b3..4e65251 100644
--- a/packages/example/src/routes/form.tsx
+++ b/packages/example/src/routes/form.tsx
@@ -20,8 +20,8 @@ class RegisterForm extends Effect.Service<RegisterForm>()("RegisterForm", {
 
 class RegisterPage extends Component.makeUntraced(function* RegisterPage() {
     const form = yield* RegisterForm
-    const emailInput = yield* Form.useInput(form, ["email"])
-    const passwordInput = yield* Form.useInput(form, ["password"])
+    const emailInput = yield* Form.useInput(form, ["email"], { debounce: "200 millis" })
+    const passwordInput = yield* Form.useInput(form, ["password"], { debounce: "200 millis" })
 
     yield* useFork(() => Stream.runForEach(form.valueRef.changes, Console.log), [])