diff --git a/packages/playwright-core/src/utils/zones.ts b/packages/playwright-core/src/utils/zones.ts
index 15487d3595fda..035213c50de53 100644
--- a/packages/playwright-core/src/utils/zones.ts
+++ b/packages/playwright-core/src/utils/zones.ts
@@ -42,7 +42,7 @@ class ZoneManager {
 
 export class Zone {
   private readonly _asyncLocalStorage: AsyncLocalStorage<Zone | undefined>;
-  private readonly _data: Map<ZoneType, unknown>;
+  private readonly _data: ReadonlyMap<ZoneType, unknown>;
 
   static _createWithData(asyncLocalStorage: AsyncLocalStorage<Zone|undefined>, type: ZoneType, data: unknown) {
     const store = new Map(asyncLocalStorage.getStore()?._data);
@@ -60,10 +60,7 @@ export class Zone {
   }
 
   run<R>(func: () => R): R {
-    // Reset apiZone and expectZone, but restore stepZone.
-    const entries = [...this._data.entries()].filter(([type]) => (type !== 'apiZone' && type !== 'expectZone'));
-    const resetZone = new Zone(this._asyncLocalStorage, new Map(entries));
-    return this._asyncLocalStorage.run(resetZone, func);
+    return this._asyncLocalStorage.run(this, func);
   }
 
   get<T>(type: ZoneType): T | undefined {