diff --git a/src/schema/effect/index.ts b/src/schema/effect/index.ts
index 904b057..7d00ecc 100644
--- a/src/schema/effect/index.ts
+++ b/src/schema/effect/index.ts
@@ -4,3 +4,5 @@ import { option } from "./option"
 export const effect = {
     option,
 } as const
+
+export { ZodEffectOption, ZodEffectOptionNone, ZodEffectOptionSome } from "./option"
diff --git a/src/schema/effect/option.ts b/src/schema/effect/option.ts
index 98ff4bc..baca6ee 100644
--- a/src/schema/effect/option.ts
+++ b/src/schema/effect/option.ts
@@ -19,3 +19,7 @@ export const option = {
                 : unknown
         >>(v => Option.isOption(v) && Option.isNone(v), "Not an Option"),
 } as const
+
+export type ZodEffectOption<S extends z.ZodTypeAny> = ReturnType<typeof option.option<S>>
+export type ZodEffectOptionSome<S extends z.ZodTypeAny> = ReturnType<typeof option.some<S>>
+export type ZodEffectOptionNone<S extends z.ZodTypeAny> = ReturnType<typeof option.none<S>>
diff --git a/src/schema/jsonified/option.ts b/src/schema/jsonified/option.ts
index 3e68732..543706d 100644
--- a/src/schema/jsonified/option.ts
+++ b/src/schema/jsonified/option.ts
@@ -1,19 +1,21 @@
 import { Option } from "effect"
+import { identity } from "lodash-es"
+import { Jsonifiable, Opaque } from "type-fest"
 import { z } from "zod"
 import { effect } from "../effect"
-import { Opaque } from "type-fest"
-import { identity } from "lodash-es"
+import { ZodEffectOption } from "../effect/option"
 
 
-export type JsonifiedEffectOption<T> = Opaque<T | null, "@thilawyn/zod-schema-class/JsonifiedEffectOption">
+export type JsonifiedEffectOption<T extends Jsonifiable> = Opaque<T | null, "@thilawyn/zod-schema-class/JsonifiedEffectOption">
 
 
 export const jsonifyOption = {
     option: <
-        S extends ReturnType<typeof effect.option.option<T>>,
+        S extends ZodEffectOption<T>,
         T extends z.ZodTypeAny,
+        Jsonify,
     >(
-        schema: S | ReturnType<typeof effect.option.option<T>>
+        schema: S | ZodEffectOption<T>,
     ) =>
         (schema as S).transform(v => Option.getOrNull(v)),
 
diff --git a/src/tests.ts b/src/tests.ts
index 3f93b47..4e2caff 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -4,8 +4,9 @@ import { z } from "zod"
 import { JsonifiedZodSchemaClass } from "./JsonifiedZodSchemaClass"
 import { ZodSchemaClass } from "./ZodSchemaClass"
 import { dejsonify, jsonify } from "./schema/jsonified"
-import { effect } from "./schema/lib"
+import { ZodEffectOption, ZodEffectOptionNone, ZodEffectOptionSome, effect } from "./schema/lib"
 import { MobXObservableZodSchemaObject } from "./traits/MobXObservableZodSchemaObject"
+import { satisfies } from "effect/Function"
 
 
 const userExp = ZodSchemaClass(
@@ -30,6 +31,10 @@ const userInst = User.create({ id: Option.some(1n), name: "User" })
 const userInstEffect = User.createEffect({ id: Option.some(1n), name: "User" })
 
 
+const t = z.literal("prout")
+const optionT = effect.option.option(t)
+const someT = optionT._def.options[0] satisfies ZodEffectOptionSome<typeof t>
+
 const jsonifiedOption = jsonify.option.some(
     effect.option.some(z.literal("prout"))
 )