diff --git a/packages/playwright/src/worker/testInfo.ts b/packages/playwright/src/worker/testInfo.ts
index 139a134965..08e7972fac 100644
--- a/packages/playwright/src/worker/testInfo.ts
+++ b/packages/playwright/src/worker/testInfo.ts
@@ -32,7 +32,7 @@ import { testInfoError } from './util';
 
 export interface TestStepInternal {
   complete(result: { error?: Error | unknown, suggestedRebaseline?: string }): void;
-  attachmentIndexes: number[];
+  attachmentIndices: number[];
   stepId: string;
   title: string;
   category: 'hook' | 'fixture' | 'test.step' | 'expect' | 'attach' | string;
@@ -249,7 +249,7 @@ export class TestInfoImpl implements TestInfo {
     return zones.zoneData<ExpectZone>('expectZone')?.stepId;
   }
 
-  _addStep(data: Omit<TestStepInternal, 'complete' | 'stepId' | 'steps' | 'attachmentIndexes'>, parentStep?: TestStepInternal): TestStepInternal {
+  _addStep(data: Omit<TestStepInternal, 'complete' | 'stepId' | 'steps' | 'attachmentIndices'>, parentStep?: TestStepInternal): TestStepInternal {
     const stepId = `${data.category}@${++this._lastStepId}`;
 
     if (data.isStage) {
@@ -268,12 +268,12 @@ export class TestInfoImpl implements TestInfo {
     }
     data.location = data.location || filteredStack[0];
 
-    const attachmentIndexes: number[] = [];
+    const attachmentIndices: number[] = [];
     const step: TestStepInternal = {
       stepId,
       ...data,
       steps: [],
-      attachmentIndexes,
+      attachmentIndices,
       complete: result => {
         if (step.endWallTime)
           return;
@@ -310,7 +310,7 @@ export class TestInfoImpl implements TestInfo {
         };
         this._onStepEnd(payload);
         const errorForTrace = step.error ? { name: '', message: step.error.message || '', stack: step.error.stack } : undefined;
-        const attachments = attachmentIndexes.map(i => this.attachments[i]);
+        const attachments = attachmentIndices.map(i => this.attachments[i]);
         this._tracing.appendAfterActionForStep(stepId, errorForTrace, attachments);
       }
     };
@@ -422,7 +422,7 @@ export class TestInfoImpl implements TestInfo {
   private _attach(attachment: TestInfo['attachments'][0], stepId: string | undefined) {
     const index = this._attachmentsPush(attachment) - 1;
     if (stepId)
-      this._stepMap.get(stepId)!.attachmentIndexes.push(index);
+      this._stepMap.get(stepId)!.attachmentIndices.push(index);
     this._onAttach({
       testId: this.testId,
       name: attachment.name,