diff --git a/jest.config.js b/jest.config.js
index 2626780..6d2c440 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -3,10 +3,10 @@ module.exports = {
   testEnvironment: 'node',
   roots: ['<rootDir>/tests'],
   testMatch: ['**/*.test.ts'],
-  collectCoverageFrom: ['src/**/*.ts', '!src/**/*.d.ts'],
+  collectCoverageFrom: ['src/**/*.ts'],
   coverageDirectory: 'coverage',
   moduleFileExtensions: ['ts', 'js', 'json'],
   transform: {
     '^.+\\.ts$': 'ts-jest'
   }
-};
+}
\ No newline at end of file