diff --git a/index.php b/index.php
index 56775a8..f2412cf 100644
--- a/index.php
+++ b/index.php
@@ -16,6 +16,9 @@ function image($path)
 
 function image_raw($path)
 {
+    if (!function_exists("mime_content_type")) {
+        require_once "mimetype.php";
+    }
     header("Content-type: " . mime_content_type("i/" . $path));
     echo file_get_contents("i/" . $path);
 }
diff --git a/mimetype.php b/mimetype.php
new file mode 100644
index 0000000..29f2bb7
--- /dev/null
+++ b/mimetype.php
@@ -0,0 +1,37 @@
+<?php
+function mime_content_type($filename)
+{
+    $idx = explode('.', $filename);
+    $count_explode = count($idx);
+    $idx = strtolower($idx[$count_explode - 1]);
+
+    $mimet = array(
+
+        // images
+        'png' => 'image/png',
+        'jpe' => 'image/jpeg',
+        'jpeg' => 'image/jpeg',
+        'jpg' => 'image/jpeg',
+        'gif' => 'image/gif',
+        'bmp' => 'image/bmp',
+        'ico' => 'image/vnd.microsoft.icon',
+        'tiff' => 'image/tiff',
+        'tif' => 'image/tiff',
+        'svg' => 'image/svg+xml',
+        'svgz' => 'image/svg+xml',
+
+        // audio/video
+        'mp3' => 'audio/mpeg',
+        'qt' => 'video/quicktime',
+        'mov' => 'video/quicktime',
+        'mp4' => 'video/mp4',
+        'flv' => 'video/x-flv',
+
+    );
+
+    if (isset($mimet[$idx])) {
+        return $mimet[$idx];
+    } else {
+        return 'application/octet-stream';
+    }
+}
\ No newline at end of file