diff --git a/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.spec.ts b/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.spec.ts
index 9bb8ef02ef766..dee21b035aa74 100644
--- a/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.spec.ts
+++ b/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.spec.ts
@@ -1,6 +1,7 @@
 import { Tree, readJson } from '@nx/devkit';
 import { createTreeWithEmptyWorkspace } from '@nx/devkit/testing';
 import { convertEslintJsonToFlatConfig } from './json-converter';
+import { EOL } from 'node:os';
 
 describe('convertEslintJsonToFlatConfig', () => {
   let tree: Tree;
@@ -63,7 +64,7 @@ describe('convertEslintJsonToFlatConfig', () => {
         })
       );
 
-      tree.write('.eslintignore', 'node_modules\nsomething/else');
+      tree.write('.eslintignore', `node_modules${EOL}something/else`);
 
       const { content } = convertEslintJsonToFlatConfig(
         tree,
@@ -227,7 +228,7 @@ describe('convertEslintJsonToFlatConfig', () => {
         })
       );
 
-      tree.write('mylib/.eslintignore', 'node_modules\nsomething/else');
+      tree.write('mylib/.eslintignore', `node_modules${EOL}something/else`);
 
       const { content } = convertEslintJsonToFlatConfig(
         tree,
@@ -376,7 +377,7 @@ describe('convertEslintJsonToFlatConfig', () => {
         })
       );
 
-      tree.write('.eslintignore', 'node_modules\nsomething/else');
+      tree.write('.eslintignore', `node_modules${EOL}something/else`);
 
       const { content } = convertEslintJsonToFlatConfig(
         tree,
@@ -537,7 +538,7 @@ describe('convertEslintJsonToFlatConfig', () => {
         })
       );
 
-      tree.write('mylib/.eslintignore', 'node_modules\nsomething/else');
+      tree.write('mylib/.eslintignore', `node_modules${EOL}something/else`);
 
       const { content } = convertEslintJsonToFlatConfig(
         tree,
diff --git a/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.ts b/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.ts
index 18fa09e779729..abccb8c55629f 100644
--- a/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.ts
+++ b/packages/eslint/src/generators/convert-to-flat-config/converters/json-converter.ts
@@ -12,6 +12,7 @@ import {
 } from '../../utils/flat-config/ast-utils';
 import { getPluginImport } from '../../utils/eslint-file';
 import { mapFilePath } from '../../utils/flat-config/path-utils';
+import { EOL } from 'node:os';
 
 /**
  * Converts an ESLint JSON config to a flat config.
@@ -185,7 +186,7 @@ export function convertEslintJsonToFlatConfig(
     if (tree.exists(ignorePath)) {
       const patterns = tree
         .read(ignorePath, 'utf-8')
-        .split('\n')
+        .split(EOL)
         .filter((line) => line.length > 0 && line !== 'node_modules')
         .map((path) => mapFilePath(path));
       if (patterns.length > 0) {