diff --git a/packages/typia-validator/vitest.config.ts b/packages/typia-validator/vitest.config.ts
index 2a06db57..4d37a53c 100644
--- a/packages/typia-validator/vitest.config.ts
+++ b/packages/typia-validator/vitest.config.ts
@@ -4,7 +4,7 @@ import { defineProject } from 'vitest/config'
 export default defineProject({
   plugins: [
     UnpluginTypia({
-      tsconfig: './tsconfig.json',
+      tsconfig: './tsconfig.build.json',
     }),
   ],
   test: {
diff --git a/vitest.config.ts b/vitest.config.ts
index 1c693e6e..58794293 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -1,15 +1,15 @@
-import { defineConfig, coverageConfigDefaults } from 'vitest/config'
+import { defineConfig } from 'vitest/config'
 
 export default defineConfig({
   test: {
     coverage: {
-      exclude: ['**/dist/**', ...coverageConfigDefaults.exclude],
       // TODO: use v8 - https://github.com/vitest-dev/vitest/issues/5783
       provider: 'istanbul',
       thresholds: {
         autoUpdate: true,
       },
     },
+    dir: 'src',
     projects: ['packages/*', '!packages/bun-transpiler'],
   },
 })