diff --git a/mailtosesame b/mailtosesame
index 9a3b0d8..fbd0c61 100755
--- a/mailtosesame
+++ b/mailtosesame
@@ -3,6 +3,9 @@
 # This script will convert UR1 user mail into UR1 user sesame
 # The first argument should be a file with a mail by line!
 
+# Dependancies:
+# ldapsearch (provide by ldap-utils on GNU/Linux)
+
 MAIL_LIST="${1}"
 UID_LIST="${MAIL_LIST}_uid"