diff --git a/PHPGangsta/GoogleAuthenticator.php b/PHPGangsta/GoogleAuthenticator.php
index bf7d116..6a9e690 100644
--- a/PHPGangsta/GoogleAuthenticator.php
+++ b/PHPGangsta/GoogleAuthenticator.php
@@ -109,7 +109,7 @@ public function getQRCodeGoogleUrl($name, $secret, $title = null, $params = arra
             $urlencoded .= urlencode('&issuer='.urlencode($title));
         }
 
-        return "https://api.qrserver.com/v1/create-qr-code/?data=$urlencoded&size=${width}x${height}&ecc=$level";
+        return "https://api.qrserver.com/v1/create-qr-code/?data={$urlencoded}&size={$width}x{$height}&ecc={$level}";
     }
 
     /**
diff --git a/composer.json b/composer.json
index 9de7cc1..ea1ca6a 100644
--- a/composer.json
+++ b/composer.json
@@ -7,16 +7,10 @@
     "license": "BSD-4-Clause",
     "authors": [
         {
-            "name": "Michael Kliewe",
-            "email": "info@phpgangsta.de",
-            "homepage": "http://www.phpgangsta.de/",
-            "role": "Developer"
+            "name": "Voytek Manowiec",
+            "homepage": "https://github.com/vmanrc"
         }
     ],
-    "support": {
-        "source": "https://github.com/PHPGangsta/GoogleAuthenticator",
-        "issues": "https://github.com/PHPGangsta/GoogleAuthenticator/issues"
-    },
     "require": {
         "php": ">=5.3"
     },