diff --git a/README.md b/README.md
index 8d054cf4..1ceadf44 100644
--- a/README.md
+++ b/README.md
@@ -34,13 +34,14 @@ https://www.maniacontrol.com
 ## REQUIREMENTS:
 - MySQL Database
 - PHP 5.4+
-- Needed extensions (on ManiaControl startup you will see if you have them activated):
+- Needed extensions (on ManiaControl startup you will see if you have them installed and activated):
 	- php_mysqli
 	- php_curl
 	- php_xmlrpc (TM only, recommended for SM)
 	- php_zlib
 	- php_zip
-
+	- php_mbstring
+	
 ### How to report bugs or request features?:
 - Write a mail to bugs(at)maniacontrol(dot)com
 - Open an issue on GitHub.com/ManiaControl/ManiaControl
diff --git a/core/Utils/SystemUtil.php b/core/Utils/SystemUtil.php
index 94d61224..e6c43b68 100644
--- a/core/Utils/SystemUtil.php
+++ b/core/Utils/SystemUtil.php
@@ -97,6 +97,16 @@ class SystemUtil {
 			Logger::log($message . 'FOUND!');
 		}
 
+		// Check for MBString
+		$message = 'Checking for installed mbstring ... ';
+		if (!extension_loaded('mbstring')) {
+			Logger::log($message . 'NOT FOUND!');
+			Logger::log(" -- You don't have mbstring installed! Check: http://php.net/manual/en/mbstring.setup.php");
+			$success = false;
+		} else {
+			Logger::log($message . 'FOUND!');
+		}
+
 		if (!$success) {
 			// Missing requirements
 			self::quit();