diff --git a/packages/playwright/src/reporters/base.ts b/packages/playwright/src/reporters/base.ts
index c11657d69da73..fe0f305364a0b 100644
--- a/packages/playwright/src/reporters/base.ts
+++ b/packages/playwright/src/reporters/base.ts
@@ -49,7 +49,7 @@ type TestSummary = {
 export type CommonReporterOptions = {
   configDir: string,
   _mode?: 'list' | 'test' | 'merge',
-  _isTestServer?: boolean,
+  isTestServer?: boolean,
   _commandHash?: string,
 };
 
diff --git a/packages/playwright/src/reporters/html.ts b/packages/playwright/src/reporters/html.ts
index 153eb16a13716..1e30221dfb6b0 100644
--- a/packages/playwright/src/reporters/html.ts
+++ b/packages/playwright/src/reporters/html.ts
@@ -150,10 +150,10 @@ class HtmlReporter implements ReporterV2 {
     if (process.env.CI || !this._buildResult)
       return;
     const { ok, singleTestId } = this._buildResult;
-    const shouldOpen = !this._options._isTestServer && (this._open === 'always' || (!ok && this._open === 'on-failure'));
+    const shouldOpen = !this._options.isTestServer && (this._open === 'always' || (!ok && this._open === 'on-failure'));
     if (shouldOpen) {
       await showHTMLReport(this._outputFolder, this._host, this._port, singleTestId);
-    } else if (this._options._mode === 'test' && !this._options._isTestServer) {
+    } else if (this._options._mode === 'test' && !this._options.isTestServer) {
       const packageManagerCommand = getPackageManagerExecCommand();
       const relativeReportPath = this._outputFolder === standaloneDefaultFolder() ? '' : ' ' + path.relative(process.cwd(), this._outputFolder);
       const hostArg = this._host ? ` --host ${this._host}` : '';
diff --git a/packages/playwright/src/runner/reporters.ts b/packages/playwright/src/runner/reporters.ts
index 280e0aa1726e2..b5f34013df618 100644
--- a/packages/playwright/src/runner/reporters.ts
+++ b/packages/playwright/src/runner/reporters.ts
@@ -106,8 +106,8 @@ export function createErrorCollectingReporter(screen: Screen): ErrorCollectingRe
 function reporterOptions(config: FullConfigInternal, mode: 'list' | 'test' | 'merge', isTestServer: boolean): CommonReporterOptions {
   return {
     configDir: config.configDir,
+    isTestServer: isTestServer,
     _mode: mode,
-    _isTestServer: isTestServer,
     _commandHash: computeCommandHash(config),
   };
 }
diff --git a/tests/playwright-test/reporter.spec.ts b/tests/playwright-test/reporter.spec.ts
index 358368a240bd7..81c1462cee5df 100644
--- a/tests/playwright-test/reporter.spec.ts
+++ b/tests/playwright-test/reporter.spec.ts
@@ -831,3 +831,21 @@ test('attachments are reported in onStepEnd', { annotation: { type: 'issue', des
     '[hook] After Hooks: 2 attachments in result',
   ]);
 });
+
+test('is passed isTestServer', { annotation: { type: 'issue', description: 'https://github.com/microsoft/playwright/issues/37867' } }, async ({ runInlineTest }) => {
+  class TestReporter implements Reporter {
+    constructor(options) {
+      console.log('%% isTestServer=' + options.isTestServer);
+    }
+  }
+  const result = await runInlineTest({
+    'reporter.ts': `module.exports = ${TestReporter.toString()}`,
+    'playwright.config.ts': `module.exports = { reporter: './reporter' };`,
+    'a.spec.ts': `
+      import { test, expect } from '@playwright/test';
+      test('test', async () => {});
+    `,
+  }, { 'reporter': '', 'workers': 1 });
+
+  expect(result.outputLines).toEqual(['isTestServer=false']);
+});