diff --git a/docs/config/index.md b/docs/config/index.md
index eeb7bf9e5d88..e756e27f6150 100644
--- a/docs/config/index.md
+++ b/docs/config/index.md
@@ -1326,7 +1326,7 @@ Watermarks for statements, lines, branches and functions. See [istanbul document
 #### coverage.processingConcurrency
 
 - **Type:** `boolean`
-- **Default:** `Math.min(20, os.cpu().length)`
+- **Default:** `Math.min(20, os.cpus().length)`
 - **Available for providers:** `'v8' | 'istanbul'`
 - **CLI:** `--coverage.processingConcurrency=<number>`
 
diff --git a/packages/vitest/src/types/coverage.ts b/packages/vitest/src/types/coverage.ts
index 9b88026200fe..9590a61442af 100644
--- a/packages/vitest/src/types/coverage.ts
+++ b/packages/vitest/src/types/coverage.ts
@@ -208,7 +208,7 @@ export interface BaseCoverageOptions {
 
   /**
    * Concurrency limit used when processing the coverage results.
-   * Defaults to `Math.min(20, os.cpu().length)`
+   * Defaults to `Math.min(20, os.cpus().length)`
    */
   processingConcurrency?: number
 }