1 files changed, 5 insertions, 2 deletions
diff --git a/lib/internal/modules/esm/default_resolve.js b/lib/internal/modules/esm/default_resolve.js
index 580419deac..7686e3e003 100644
--- a/lib/internal/modules/esm/default_resolve.js
+++ b/lib/internal/modules/esm/default_resolve.js
@@ -8,6 +8,7 @@ const { getOptionValue } = require('internal/options');
 
 const preserveSymlinks = getOptionValue('--preserve-symlinks');
 const preserveSymlinksMain = getOptionValue('--preserve-symlinks-main');
+const experimentalJsonModules = getOptionValue('--experimental-json-modules');
 const typeFlag = getOptionValue('--input-type');
 const experimentalWasmModules = getOptionValue('--experimental-wasm-modules');
 const { resolve: moduleWrapResolve,
@@ -28,7 +29,6 @@ const extensionFormatMap = {
   '__proto__': null,
   '.cjs': 'commonjs',
   '.js': 'module',
-  '.json': 'json',
   '.mjs': 'module'
 };
 
@@ -36,7 +36,7 @@ const legacyExtensionFormatMap = {
   '__proto__': null,
   '.cjs': 'commonjs',
   '.js': 'commonjs',
-  '.json': 'json',
+  '.json': 'commonjs',
   '.mjs': 'module',
   '.node': 'commonjs'
 };
@@ -44,6 +44,9 @@ const legacyExtensionFormatMap = {
 if (experimentalWasmModules)
   extensionFormatMap['.wasm'] = legacyExtensionFormatMap['.wasm'] = 'wasm';
 
+if (experimentalJsonModules)
+  extensionFormatMap['.json'] = legacyExtensionFormatMap['.json'] = 'json';
+
 function resolve(specifier, parentURL) {
   try {
     const parsed = new URL(specifier);