diff --git a/packages/playwright-core/src/server/chromium/videoRecorder.ts b/packages/playwright-core/src/server/chromium/videoRecorder.ts
index 25199413f8..86501e736f 100644
--- a/packages/playwright-core/src/server/chromium/videoRecorder.ts
+++ b/packages/playwright-core/src/server/chromium/videoRecorder.ts
@@ -53,7 +53,7 @@ export class VideoRecorder {
   private constructor(page: Page, ffmpegPath: string, progress: Progress) {
     this._progress = progress;
     this._ffmpegPath = ffmpegPath;
-    page.on(Page.Events.ScreencastFrame, frame => this.writeFrame(frame.buffer, frame.timestamp));
+    page.on(Page.Events.ScreencastFrame, frame => this.writeFrame(frame.buffer, frame.frameSwapWallTime));
   }
 
   private async _launch(options: types.PageScreencastOptions) {