diff --git a/jest.config.js b/jest.config.js
index 5a82228..552e3dd 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -5,5 +5,8 @@ module.exports = {
   transform: {
     '^.+\\.ts$': 'ts-jest'
   },
+  collectCoverageFrom: [
+    'src/**/*.{js,ts}',
+  ],
   verbose: true
 }
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