diff --git a/phpBB/adm/admin_attachments.php b/phpBB/adm/admin_attachments.php
index 5bc7441978..f69bbbd9ef 100644
--- a/phpBB/adm/admin_attachments.php
+++ b/phpBB/adm/admin_attachments.php
@@ -1471,7 +1471,7 @@ function search_imagemagick()
 
 		foreach ($locations as $location)
 		{
-			if (file_exists($location . 'convert' . $exe) && @is_readable($location . 'convert' . $exe) && @filesize($location . 'convert' . $exe) > 10000)
+			if (@is_readable($location . 'mogrify' . $exe) && @filesize($location . 'mogrify' . $exe) > 3000)
 			{
 				$imagick = str_replace('\\', '/', $location);
 				continue;