diff --git a/src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php b/src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php
index acf71c666605a..3e1c324f00203 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php
@@ -54,7 +54,9 @@ protected function isOtherServerProcessRunning($address)
             return true;
         }
 
-        list($hostname, $port) = explode(':', $address);
+        $pos = strrpos($address, ':');
+        $hostname = substr($address, 0, $pos);
+        $port = substr($address, $pos + 1);
 
         $fp = @fsockopen($hostname, $port, $errno, $errstr, 5);