diff --git a/filesystem/ImagickBackend.php b/filesystem/ImagickBackend.php
index b59f57a17..d94fb0652 100644
--- a/filesystem/ImagickBackend.php
+++ b/filesystem/ImagickBackend.php
@@ -1,5 +1,16 @@
 <?php
+
+/**
+ * @package framework
+ * @subpackage filesystem
+ */
+
+if(class_exists('Imagick')) {
 class ImagickBackend extends Imagick implements Image_Backend {
+	
+	/**
+	 * @var int
+	 */
 	protected static $default_quality = 75;
 	
 	/**
@@ -264,3 +275,4 @@ class ImagickBackend extends Imagick implements Image_Backend {
 		return $new;
 	}
 }
+}
\ No newline at end of file