diff --git a/src/Schema/encodedAsJsonValue.ts b/src/Schema/encodedAsJsonValue.ts
new file mode 100644
index 0000000..b569854
--- /dev/null
+++ b/src/Schema/encodedAsJsonValue.ts
@@ -0,0 +1,12 @@
+import type { Schema } from "@effect/schema"
+import type { Jsonifiable } from "type-fest"
+
+
+/**
+ * Takes a schema of which the encoded value satisfies `Jsonifiable` and returns the same schema with Prisma's `JsonValue` as its encoded type instead.
+ * This allows you use to use jsonifiable schemas to strongly type `Json` database fields in Prisma.
+ *
+ * This is needed because type-fest's `Jsonifiable` and `JsonValue` types do not satisfy Prisma's `JsonValue`, and as such we need to perform an unsafe cast.
+ */
+export const encodedAsJsonValue = <A, R>(schema: Schema.Schema<A, Jsonifiable, R>) =>
+    schema as Schema.Schema<A, Jsonifiable, R>
diff --git a/src/Schema/index.ts b/src/Schema/index.ts
index 8e5942f..3d6c5f1 100644
--- a/src/Schema/index.ts
+++ b/src/Schema/index.ts
@@ -1,5 +1,6 @@
 export * from "./Class"
 export * from "./DateTime"
+export * from "./encodedAsJsonValue"
 export * from "./Jsonifiable"
 export * from "./Kind"
 export * as MobX from "./MobX"