diff --git a/README.md b/README.md
index 2d2edfd..539c6c0 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ Install the following programs and PHP modules:
 * php-openssl
 * php-ctype
 * php-filter
+* php-fileinfo
 
 Copy **config.sample.php** to **config.php**, and edit **config.php** to your needs.