diff --git a/install/lang/en.php b/install/lang/en.php
index 9f9b9c4dbfa5c876950dd24204c24eeff214c12f..0de991dd520ddc6a98fbdeed3267165fdded938e 100755
--- a/install/lang/en.php
+++ b/install/lang/en.php
@@ -160,6 +160,9 @@ if (!defined('_FILEINFO')) {
 if (!defined('_GETTEXT')) {
     define('_GETTEXT', 'gettext library');
 }
+if (!defined('_IMAGICK')) {
+    define('_IMAGICK', 'IMagick library');
+}
 if (!defined('_PEAR')) {
     define('_PEAR', 'PEAR');
 }