diff --git a/README.md b/README.md
index 615f33e..fda832a 100644
--- a/README.md
+++ b/README.md
@@ -131,6 +131,8 @@ Schema generated:
 
 ## TypeScript
 
+### CommonJS
+
 With `"esModuleInterop": true` activated in the `tsconfig.json`:
 
 ```typescript
@@ -153,6 +155,19 @@ const schema = S.object()
   .valueOf()
 ```
 
+### ESM
+
+A named export is also available to work with native ESM modules:
+
+```typescript
+import { S } from 'fluent-json-schema'
+
+const schema = S.object()
+  .prop('foo', S.string())
+  .prop('bar', S.number())
+  .valueOf()
+```
+
 ## Validation
 
 Fluent schema **does not** validate a JSON schema. However, many libraries can do that for you.
diff --git a/src/FluentJSONSchema.js b/src/FluentJSONSchema.js
index feefeba..326e40c 100644
--- a/src/FluentJSONSchema.js
+++ b/src/FluentJSONSchema.js
@@ -199,3 +199,4 @@ const fluentSchema = {
 }
 module.exports = fluentSchema
 module.exports.default = fluentSchema
+module.exports.S = fluentSchema
diff --git a/types/FluentJSONSchema.d.ts b/types/FluentJSONSchema.d.ts
index fba1db0..0f40a09 100644
--- a/types/FluentJSONSchema.d.ts
+++ b/types/FluentJSONSchema.d.ts
@@ -256,5 +256,6 @@ export interface S extends BaseSchema<S> {
   FORMATS: FORMATS
 }
 
-declare var s: S
-export default s
+export declare var S: S
+
+export default S