diff --git a/public/src/utils.js b/public/src/utils.js
index c99fbb99a3..6b9343ee95 100644
--- a/public/src/utils.js
+++ b/public/src/utils.js
@@ -94,7 +94,7 @@
 		},
 
 		isUserNameValid: function(name) {
-			return (name && name !== "" && (/^[a-zA-Z0-9 _-]+$/.test(name)));
+			return (name && name !== "" && (/^['"\s\-.*0-9\u00BF-\u1FFF\u2C00-\uD7FF\w]+$/.test(name)));
 		},
 
 		isPasswordValid: function(password) {
diff --git a/tests/utils.js b/tests/utils.js
new file mode 100644
index 0000000000..70643802f8
--- /dev/null
+++ b/tests/utils.js
@@ -0,0 +1,12 @@
+var assert = require('assert'),
+	utils = require('./../public/src/utils.js');
+
+
+describe("Utility Methods", function(){
+	describe("username validation", function(){
+		it("accepts latin-1 characters", function(){
+			var username = "John\"'-. Doeäâèéë1234";
+			assert(utils.isUserNameValid(username), 'invalid username');
+		});
+	});
+});