diff --git a/lib/isMobilePhone.js b/lib/isMobilePhone.js
index 57cad23d3..5418e2f59 100644
--- a/lib/isMobilePhone.js
+++ b/lib/isMobilePhone.js
@@ -55,6 +55,7 @@ var phones = {
 // aliases
 phones['en-CA'] = phones['en-US'];
 phones['fr-BE'] = phones['nl-BE'];
+phones['zh-HK'] = phones['en-HK'];
 
 function isMobilePhone(str, locale) {
   (0, _assertString2.default)(str);
@@ -63,4 +64,4 @@ function isMobilePhone(str, locale) {
   }
   return false;
 }
-module.exports = exports['default'];
\ No newline at end of file
+module.exports = exports['default'];