diff --git a/doc/api/cli.md b/doc/api/cli.md
index 6e0b337a2a39b7..ac5b1107ac9fde 100644
--- a/doc/api/cli.md
+++ b/doc/api/cli.md
@@ -1040,7 +1040,7 @@ added:
 > Stability: 1.0 - Early development
 
 If the `--experimental-default-config-file` flag is present, Node.js will look for a
-`node.config.json` file in the current working directory and load it as a
+`package.json` file in the current working directory and load it as a
 as configuration file.
 
 ### `--experimental-eventsource`
diff --git a/doc/node-config-schema.json b/doc/node-config-schema.json
index bffae1fc617917..64a4e387642ba7 100644
--- a/doc/node-config-schema.json
+++ b/doc/node-config-schema.json
@@ -1,6 +1,6 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "additionalProperties": false,
+  "additionalProperties": true,
   "properties": {
     "$schema": {
       "type": "string"
diff --git a/doc/node.1 b/doc/node.1
index 691a5c914859b2..62086b36f23dd5 100644
--- a/doc/node.1
+++ b/doc/node.1
@@ -173,7 +173,7 @@ Enable experimental addon module support.
 Specifies the configuration file to load.
 .
 .It Fl -experimental-default-config-file
-Enable support for automatically loading node.config.json.
+Enable support for automatically loading configuration from package.json.
 .
 .It Fl -experimental-import-meta-resolve
 Enable experimental ES modules support for import.meta.resolve().
diff --git a/lib/internal/options.js b/lib/internal/options.js
index be1dc6a842c526..9b363a34eb770f 100644
--- a/lib/internal/options.js
+++ b/lib/internal/options.js
@@ -65,7 +65,7 @@ function generateConfigJsonSchema() {
   const schema = {
     __proto__: null,
     $schema: 'https://json-schema.org/draft/2020-12/schema',
-    additionalProperties: false,
+    additionalProperties: true,
     properties: {
       $schema: {
         __proto__: null,
diff --git a/src/node_config_file.cc b/src/node_config_file.cc
index e6c049b4d14f10..98033874516479 100644
--- a/src/node_config_file.cc
+++ b/src/node_config_file.cc
@@ -31,7 +31,7 @@ std::optional<std::string_view> ConfigReader::GetDataFromArgs(
   }
 
   if (has_default_config_file) {
-    return "node.config.json";
+    return "package.json";
   }
 
   return std::nullopt;
diff --git a/test/fixtures/rc/default/node.config.json b/test/fixtures/rc/default/package.json
similarity index 100%
rename from test/fixtures/rc/default/node.config.json
rename to test/fixtures/rc/default/package.json
diff --git a/test/fixtures/test-runner/flag-propagation/node.config.json b/test/fixtures/test-runner/flag-propagation/package.json
similarity index 100%
rename from test/fixtures/test-runner/flag-propagation/node.config.json
rename to test/fixtures/test-runner/flag-propagation/package.json
diff --git a/test/parallel/test-config-file.js b/test/parallel/test-config-file.js
index cc235bfadae146..a411b31f242aaa 100644
--- a/test/parallel/test-config-file.js
+++ b/test/parallel/test-config-file.js
@@ -350,7 +350,7 @@ test('broken value in node_options', async () => {
   strictEqual(result.code, 9);
 });
 
-test('should use node.config.json as default', async () => {
+test('should use package.json as default', async () => {
   const result = await spawnPromisified(process.execPath, [
     '--no-warnings',
     '--experimental-default-config-file',
@@ -363,7 +363,7 @@ test('should use node.config.json as default', async () => {
   strictEqual(result.code, 0);
 });
 
-test('should override node.config.json when specificied', async () => {
+test('should override package.json when specificied', async () => {
   const result = await spawnPromisified(process.execPath, [
     '--no-warnings',
     '--experimental-default-config-file',
@@ -383,7 +383,7 @@ test('should throw an error when the file is non readable', {
   skip: isWindows || process.getuid() === 0,
 }, async () => {
   tmpdir.refresh();
-  const dest = join(tmpdir.path, 'node.config.json');
+  const dest = join(tmpdir.path, 'package.json');
   writeFileSync(dest, JSON.stringify({
     nodeOptions: { 'max-http-header-size': 10 }
   }));
@@ -395,7 +395,7 @@ test('should throw an error when the file is non readable', {
   ], {
     cwd: tmpdir.path,
   });
-  match(result.stderr, /Cannot read configuration from node\.config\.json: permission denied/);
+  match(result.stderr, /Cannot read configuration from package\.json: permission denied/);
   strictEqual(result.stdout, '');
   strictEqual(result.code, 9);
 });
diff --git a/test/parallel/test-runner-flag-propagation.js b/test/parallel/test-runner-flag-propagation.js
index d5190251ef8db7..d89d896bd4e128 100644
--- a/test/parallel/test-runner-flag-propagation.js
+++ b/test/parallel/test-runner-flag-propagation.js
@@ -15,7 +15,7 @@ const runner = path.join(fixtureDir, 'runner.mjs');
 describe('test runner flag propagation', () => {
   describe('via command line', () => {
     const flagPropagationTests = [
-      ['--experimental-config-file', 'node.config.json', ''],
+      ['--experimental-config-file', 'package.json', ''],
       ['--experimental-default-config-file', '', false],
       ['--env-file', '.env', '.env'],
       ['--env-file-if-exists', '.env', '.env'],