diff --git a/packages/core-js/modules/web.url.js b/packages/core-js/modules/web.url.js
index 4e4df4ba15dd..c6b0372503e7 100644
--- a/packages/core-js/modules/web.url.js
+++ b/packages/core-js/modules/web.url.js
@@ -31,7 +31,7 @@ var INVALID_HOST = 'Invalid host';
 var INVALID_PORT = 'Invalid port';
 
 var ALPHA = /[A-Za-z]/;
-var ALPHANUMERIC = /[\d+\-.A-Za-z]/;
+var ALPHANUMERIC = /[\d+-.A-Za-z]/;
 var DIGIT = /\d/;
 var HEX_START = /^(0x|0X)/;
 var OCT = /^[0-7]+$/;