diff --git a/packages/map2tree/jest.config.cjs b/packages/map2tree/jest.config.cjs
index ba96f2e8..3fb8088b 100644
--- a/packages/map2tree/jest.config.cjs
+++ b/packages/map2tree/jest.config.cjs
@@ -1,5 +1,8 @@
 module.exports = {
   extensionsToTreatAsEsm: ['.ts'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
   transform: {
     '^.+\\.ts$': ['ts-jest', { tsconfig: 'tsconfig.test.json', useESM: true }],
   },