diff --git a/app/main-view-model.ts b/app/main-view-model.ts
index f74d2c1..5464412 100644
--- a/app/main-view-model.ts
+++ b/app/main-view-model.ts
@@ -123,12 +123,12 @@ export class TestBrokerViewModel extends Observable {
             .then((scriptsContents: IScriptInfo[]) => setTimeout(() => this.runTests(scriptsContents), 0));
     }
 
-    public runTests(scripts: IScriptInfo[]): void {
+    public async runTests(scripts: IScriptInfo[]): Promise<void> {
         const errors = this.testExecutionService.runTests(scripts);
         errors.forEach(err => this.error(err.msg, err.url, err.line));
 
         try {
-            executeWebpackTests();
+            await executeWebpackTests();
         } catch (e) {
             this.error(`${e?.message || e}`);
         }
diff --git a/app/main.ts b/app/main.ts
index b97e49f..e1f934a 100644
--- a/app/main.ts
+++ b/app/main.ts
@@ -13,9 +13,7 @@ export interface RunTestAppOptions {
 
 export function runTestApp(options: RunTestAppOptions = {}) {
   if (options?.runTests) {
-    registerTestRunner(() => {
-      options.runTests();
-    });
+    registerTestRunner(options.runTests);
   }
   Application.run({ moduleName: "bundle-app-root" });
 }
diff --git a/app/services/webpack-test-runner.ts b/app/services/webpack-test-runner.ts
index 71b9fc1..3cfa817 100644
--- a/app/services/webpack-test-runner.ts
+++ b/app/services/webpack-test-runner.ts
@@ -1,10 +1,10 @@
 let runTests: () => unknown;
 
-export function registerTestRunner(testRunner: () => unknown) {
+export function registerTestRunner(testRunner: () => unknown | Promise<unknown>) {
   runTests = testRunner;
 }
 
 
-export function executeWebpackTests() {
-    runTests?.();
+export async function executeWebpackTests() {
+    await runTests?.();
 }