diff --git a/packages/playwright-core/types/types.d.ts b/packages/playwright-core/types/types.d.ts
index cf8a8b9c8c..8ce9210346 100644
--- a/packages/playwright-core/types/types.d.ts
+++ b/packages/playwright-core/types/types.d.ts
@@ -19994,12 +19994,12 @@ export interface Tracing {
    * await context.tracing.startChunk();
    * await page.getByText('Get Started').click();
    * // Everything between startChunk and stopChunk will be recorded in the trace.
-   * await context.tracing.stopChunk({ path: 'trace1.zip' });
+   * await context.tracing.stopChunk({ path: 'trace1.pwtrace.zip' });
    *
    * await context.tracing.startChunk();
    * await page.goto('http://example.com');
    * // Save a second trace file with different actions.
-   * await context.tracing.stopChunk({ path: 'trace2.zip' });
+   * await context.tracing.stopChunk({ path: 'trace2.pwtrace.zip' });
    * ```
    *
    * @param options
diff --git a/packages/playwright/src/worker/testTracing.ts b/packages/playwright/src/worker/testTracing.ts
index a9f858850a..1b58c5ebf6 100644
--- a/packages/playwright/src/worker/testTracing.ts
+++ b/packages/playwright/src/worker/testTracing.ts
@@ -131,7 +131,7 @@ export class TestTracing {
   }
 
   generateNextTraceRecordingPath() {
-    const file = path.join(this._artifactsDir, createGuid() + '.zip');
+    const file = path.join(this._artifactsDir, createGuid() + '.pwtrace.zip');
     this._temporaryTraceFiles.push(file);
     return file;
   }