diff --git a/README.md b/README.md
index e62a9da..29065f1 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,7 @@ module.exports = {
             'locale',
             'resource'
         ],
+        defaultLng: 'en',
         defaultNs: 'resource',
         defaultValue: '__STRING_NOT_TRANSLATED__',
         resource: {
@@ -498,6 +499,7 @@ Below are the configuration options with their default values:
     },
     lngs: ['en'],
     ns: ['translation'],
+    defaultLng: 'en',
     defaultNs: 'translation',
     defaultValue: '',
     resource: {
@@ -620,6 +622,12 @@ Type: `String` or `Array` Default: `['translation']`
 
 A namespace string or an array of namespaces.
 
+#### defaultLng
+
+Type: `String` Default: `'en'`
+
+The default language used for checking default values.
+
 #### defaultNs
 
 Type: `String` Default: `'translation'`
diff --git a/package.json b/package.json
index 4c9f468..237245b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "i18next-scanner",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "description": "Scan your code, extract translation keys/values, and merge them into i18n resource files.",
   "homepage": "https://github.com/i18next/i18next-scanner",
   "author": "Cheton Wu <cheton@gmail.com>",
diff --git a/src/parser.js b/src/parser.js
index 45412c2..ed236e9 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -36,6 +36,8 @@ const defaults = {
 
     ns: [], // string or array of namespaces
 
+    defaultLng: 'en', // default language used for checking default values
+
     defaultNs: 'translation', // default namespace used if not passed to translation function
 
     defaultValue: '', // default value used if not passed to `parser.set`
@@ -636,6 +638,7 @@ class Parser {
             plural,
             pluralFallback,
             pluralSeparator,
+            defaultLng,
             defaultValue
         } = this.options;
         const keys = _.isString(keySeparator)
@@ -743,10 +746,9 @@ class Parser {
                         if (!resLoad[resKey]) {
                             // Use `options.defaultValue` if specified
                             resLoad[resKey] = options.defaultValue;
-                        } else if (resLoad[resKey] !== options.defaultValue) {
-                            // We already had a different default.
-                            const k = chalk.yellow(JSON.stringify(resKey));
-                            this.log(`i18next-scanner: Translation key ${k} has multiple different default values. Using first default`);
+                        } else if ((resLoad[resKey] !== options.defaultValue) && (lng === defaultLng)) {
+                            // A default value has provided but it's different with the expected default
+                            this.log(`i18next-scanner: The translation key ${chalk.yellow(JSON.stringify(resKey))} has a different default value, you may need to check the translation key of default language (${defaultLng})`);
                         }
                     }
 
diff --git a/test/parser.js b/test/parser.js
index 0b509a8..0563485 100644
--- a/test/parser.js
+++ b/test/parser.js
@@ -29,7 +29,7 @@ test('set warns about conflicting defaults', (t) => {
     parser.set('key', { defaultValue: 'Default text' });
     parser.set('key', { defaultValue: 'Another text' });
     t.same(parser.get('key'), 'Default text');
-    t.match(logText, /different default/);
+    t.match(logText, /different default value/);
     t.end();
 });