diff --git a/library/icon.php b/library/icon.php
index aee6941..aab527e 100755
--- a/library/icon.php
+++ b/library/icon.php
@@ -81,7 +81,7 @@ final class Icon {
     }
 
     ob_start();
-    imagejpeg($resized, null, 100);
+    imagepng($resized);
     imagedestroy($resized);
     return ob_get_clean();
   }
diff --git a/public/image.php b/public/image.php
index 2f0bf78..abaa6a7 100755
--- a/public/image.php
+++ b/public/image.php
@@ -5,11 +5,11 @@ require_once('../library/icon.php');
 
 if (isset($_GET['hash'])) {
 
-  header("Content-Type: image/jpeg");
+  header("Content-Type: image/png");
 
   if (CACHE_ENABLED) {
 
-    $filename = dirname(__FILE__) . '/../cache/' . $_GET['hash'] . '.jpeg';
+    $filename = dirname(__FILE__) . '/../cache/' . $_GET['hash'] . '.png';
 
     if (!file_exists($filename)) {