diff --git a/INSTALL b/INSTALL
index a2b85e6b60e862722e546c749878113e492c2095..48855ed7fc9124a3593d3ad1bf414d7b85f2b3dd 100644
--- a/INSTALL
+++ b/INSTALL
@@ -4,6 +4,7 @@ Installation of the software
 Before installing, please verify that you have the following programs:
   - lvm 2
   - ssh
+  - drbd (kernel module and userspace utils)
   - fping
   - python twisted library (the core is enough)
   - python openssl bindings