diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..a02e87d
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,2 @@
+export { lat_lon2n_E } from "./lat_lon2n_E.js";
+export { n_E2lat_lon } from "./n_E2lat_lon.js";
diff --git a/test/jest/lat_lon2n_E.spec.ts b/test/jest/lat_lon2n_E.spec.ts
index 8532fd7..1b9ea68 100644
--- a/test/jest/lat_lon2n_E.spec.ts
+++ b/test/jest/lat_lon2n_E.spec.ts
@@ -1,5 +1,5 @@
 import { it } from "@fast-check/jest";
-import { lat_lon2n_E } from "../../src/lat_lon2n_E.js";
+import { lat_lon2n_E } from "../../src/index.js";
 import { arbitraryLatLon } from "../arbitrary.js";
 import {
   NvectorTestClient,
diff --git a/test/jest/n_E2lat_lon.spec.ts b/test/jest/n_E2lat_lon.spec.ts
index 52fb277..dddd724 100644
--- a/test/jest/n_E2lat_lon.spec.ts
+++ b/test/jest/n_E2lat_lon.spec.ts
@@ -1,6 +1,5 @@
 import { it } from "@fast-check/jest";
-import { lat_lon2n_E } from "../../src/lat_lon2n_E.js";
-import { n_E2lat_lon } from "../../src/n_E2lat_lon.js";
+import { lat_lon2n_E, n_E2lat_lon } from "../../src/index.js";
 import { arbitraryLatLon } from "../arbitrary.js";
 import {
   NvectorTestClient,