diff --git a/packages/playwright-test/src/project.ts b/packages/playwright-test/src/project.ts
index c9c871d4be..8de0b8486b 100644
--- a/packages/playwright-test/src/project.ts
+++ b/packages/playwright-test/src/project.ts
@@ -18,6 +18,7 @@ import type { FullProject, Fixtures, FixturesWithLocation } from './types';
 import { Suite, TestCase } from './test';
 import { FixturePool, isFixtureOption } from './fixtures';
 import { TestTypeImpl } from './testType';
+import { calculateSha1 } from 'playwright-core/lib/utils/utils';
 
 export class ProjectImpl {
   config: FullProject;
@@ -64,19 +65,21 @@ export class ProjectImpl {
     return this.testPools.get(test)!;
   }
 
-  private _cloneEntries(from: Suite, to: Suite, repeatEachIndex: number, filter: (test: TestCase) => boolean): boolean {
+  private _cloneEntries(from: Suite, to: Suite, repeatEachIndex: number, filter: (test: TestCase) => boolean, relativeTitlePath: string): boolean {
     for (const entry of from._entries) {
       if (entry instanceof Suite) {
         const suite = entry._clone();
         to._addSuite(suite);
-        if (!this._cloneEntries(entry, suite, repeatEachIndex, filter)) {
+        if (!this._cloneEntries(entry, suite, repeatEachIndex, filter, relativeTitlePath + ' ' + suite.title)) {
           to._entries.pop();
           to.suites.pop();
         }
       } else {
         const test = entry._clone();
         test.retries = this.config.retries;
-        test._id = `${entry._ordinalInFile}@${entry._requireFile}#run${this.index}-repeat${repeatEachIndex}`;
+        // We rely upon relative paths being unique.
+        // See `getClashingTestsPerSuite()` in `runner.ts`.
+        test._id = `${calculateSha1(relativeTitlePath + ' ' + entry.title)}@${entry._requireFile}#run${this.index}-repeat${repeatEachIndex}`;
         test.repeatEachIndex = repeatEachIndex;
         test._projectIndex = this.index;
         to._addTest(test);
@@ -97,7 +100,7 @@ export class ProjectImpl {
 
   cloneFileSuite(suite: Suite, repeatEachIndex: number, filter: (test: TestCase) => boolean): Suite | undefined {
     const result = suite._clone();
-    return this._cloneEntries(suite, result, repeatEachIndex, filter) ? result : undefined;
+    return this._cloneEntries(suite, result, repeatEachIndex, filter, '') ? result : undefined;
   }
 
   private resolveFixtures(testType: TestTypeImpl, configUse: Fixtures): FixturesWithLocation[] {
diff --git a/packages/playwright-test/src/test.ts b/packages/playwright-test/src/test.ts
index 39f1985e47..fcba982911 100644
--- a/packages/playwright-test/src/test.ts
+++ b/packages/playwright-test/src/test.ts
@@ -128,17 +128,15 @@ export class TestCase extends Base implements reporterTypes.TestCase {
   retries = 0;
   repeatEachIndex = 0;
 
-  _ordinalInFile: number;
   _testType: TestTypeImpl;
   _id = '';
   _workerHash = '';
   _pool: FixturePool | undefined;
   _projectIndex = 0;
 
-  constructor(title: string, fn: Function, ordinalInFile: number, testType: TestTypeImpl, location: Location) {
+  constructor(title: string, fn: Function, testType: TestTypeImpl, location: Location) {
     super(title);
     this.fn = fn;
-    this._ordinalInFile = ordinalInFile;
     this._testType = testType;
     this.location = location;
   }
@@ -166,7 +164,7 @@ export class TestCase extends Base implements reporterTypes.TestCase {
   }
 
   _clone(): TestCase {
-    const test = new TestCase(this.title, this.fn, this._ordinalInFile, this._testType, this.location);
+    const test = new TestCase(this.title, this.fn, this._testType, this.location);
     test._only = this._only;
     test._requireFile = this._requireFile;
     test.expectedStatus = this.expectedStatus;
diff --git a/packages/playwright-test/src/testType.ts b/packages/playwright-test/src/testType.ts
index 5277343187..5be9a5e8b6 100644
--- a/packages/playwright-test/src/testType.ts
+++ b/packages/playwright-test/src/testType.ts
@@ -81,7 +81,7 @@ export class TestTypeImpl {
   private _createTest(type: 'default' | 'only' | 'skip' | 'fixme', location: Location, title: string, fn: Function) {
     throwIfRunningInsideJest();
     const suite = this._ensureCurrentSuite(location, 'test()');
-    const test = new TestCase(title, fn, nextOrdinalInFile(suite._requireFile), this, location);
+    const test = new TestCase(title, fn, this, location);
     test._requireFile = suite._requireFile;
     suite._addTest(test);
 
@@ -243,11 +243,4 @@ function throwIfRunningInsideJest() {
   }
 }
 
-const countByFile = new Map<string, number>();
-function nextOrdinalInFile(file: string) {
-  const ordinalInFile = countByFile.get(file) || 0;
-  countByFile.set(file, ordinalInFile + 1);
-  return ordinalInFile;
-}
-
 export const rootTestType = new TestTypeImpl([]);
diff --git a/tests/playwright-test/loader.spec.ts b/tests/playwright-test/loader.spec.ts
index d596947b88..2280c602e7 100644
--- a/tests/playwright-test/loader.spec.ts
+++ b/tests/playwright-test/loader.spec.ts
@@ -407,3 +407,52 @@ test('should filter stack even without default Error.prepareStackTrace', async (
   expect(stackLines.length).toBe(1);
 });
 
+test('should work with cross-imports - 1', async ({ runInlineTest }) => {
+  const result = await runInlineTest({
+    'test1.spec.ts': `
+      const { test } = pwt;
+      test('test 1', async ({}) => {
+        await new Promise(x => setTimeout(x, 500));
+        console.log('running TEST-1');
+      });
+    `,
+    'test2.spec.ts': `
+      import * as _ from './test1.spec';
+      const { test } = pwt;
+      test('test 2', async ({}) => {
+        await new Promise(x => setTimeout(x, 500));
+        console.log('running TEST-2');
+      });
+    `
+  }, { workers: 2 });
+  expect(result.exitCode).toBe(0);
+  expect(result.passed).toBe(2);
+  expect(result.failed).toBe(0);
+  expect(result.output).toContain('TEST-1');
+  expect(result.output).toContain('TEST-2');
+});
+
+test('should work with cross-imports - 2', async ({ runInlineTest }) => {
+  const result = await runInlineTest({
+    'test1.spec.ts': `
+      const { test } = pwt;
+      import * as _ from './test2.spec';
+      test('test 1', async ({}) => {
+        await new Promise(x => setTimeout(x, 500));
+        console.log('running TEST-1');
+      });
+    `,
+    'test2.spec.ts': `
+      const { test } = pwt;
+      test('test 2', async ({}) => {
+        await new Promise(x => setTimeout(x, 500));
+        console.log('running TEST-2');
+      });
+    `
+  }, { workers: 2, reporter: 'list' });
+  expect(result.exitCode).toBe(0);
+  expect(result.passed).toBe(2);
+  expect(result.failed).toBe(0);
+  expect(result.output).toContain('TEST-1');
+  expect(result.output).toContain('TEST-2');
+});