diff --git a/wiki/Requirements.wiki b/wiki/Requirements.wiki
index e12c08b..8c9ec37 100644
--- a/wiki/Requirements.wiki
+++ b/wiki/Requirements.wiki
@@ -10,14 +10,14 @@ For distributed PPSS, a host with SSH access is necessary, that will act as a se
   * Bash
   * mkfifo
   * md5sum
+  * sed
 
 == Requirements for distributed usage of PPSS on multiple hosts ==
 
-  * Bash
-  * mkfifo
-  * md5sum
+This is additional to the requirements for stand-alone.
+
   * SSH(D)
   * Screen
 
   * On both node and server, an unprivileged user is required.
-  * SSH key with no pass-phrase for node -> server connection. 
\ No newline at end of file
+  * SSH key with no passphrase for node -> server connection. 
\ No newline at end of file