diff --git a/plugin/tegg/lib/ModuleConfigLoader.ts b/plugin/tegg/lib/ModuleConfigLoader.ts
index 429390a5..a17b7c8a 100644
--- a/plugin/tegg/lib/ModuleConfigLoader.ts
+++ b/plugin/tegg/lib/ModuleConfigLoader.ts
@@ -49,7 +49,8 @@ export class ModuleConfigLoader {
     const moduleConfigMap: Record<string, ModuleConfigHolder> = {};
     for (const reference of this.app.moduleReferences) {
       const moduleName = ModuleConfigUtil.readModuleNameSync(reference.path);
-      const config = ModuleConfigUtil.loadModuleConfigSync(reference.path, undefined, this.app.config.env) || {};
+      // first read @eggjs/tegg-config moduleConfigs
+      const config = this.app.moduleConfigs[moduleName].config || ModuleConfigUtil.loadModuleConfigSync(reference.path, undefined, this.app.config.env) || {};
       moduleConfigMap[moduleName] = {
         name: moduleName,
         reference: {
diff --git a/plugin/tegg/test/ModuleConfig.test.ts b/plugin/tegg/test/ModuleConfig.test.ts
index 7af549cf..d9a8c100 100644
--- a/plugin/tegg/test/ModuleConfig.test.ts
+++ b/plugin/tegg/test/ModuleConfig.test.ts
@@ -37,4 +37,18 @@ describe('test/ModuleConfig.test.ts', () => {
         });
       });
   });
+
+  it('should work with overwrite', async () => {
+    mm(app.moduleConfigs.simple.config, 'features', { dynamic: { foo: 'bar', bar: 'overwrite foo' } });
+
+    await app.httpRequest()
+      .get('/config')
+      .expect(200)
+      .expect(res => {
+        assert.deepStrictEqual(res.body, {
+          moduleConfigs: { features: { dynamic: { foo: 'bar', bar: 'overwrite foo' } } },
+          moduleConfig: { features: { dynamic: { foo: 'bar', bar: 'overwrite foo' } } },
+        });
+      });
+  });
 });