diff --git a/wiki/Requirements.wiki b/wiki/Requirements.wiki
index 8f32c77..e100554 100644
--- a/wiki/Requirements.wiki
+++ b/wiki/Requirements.wiki
@@ -6,10 +6,12 @@ For distributed PPSS, a host with SSH access is necessary, that will act as a se
 == Requirements for stand-alone usage of PPSS on single host ==
 
   * Bash
+  * mkfifo
 
 == Requirements for distributed usage of PPSS on multiple hosts ==
 
   * Bash
+  * mkfifo
   * SSH(D)
   * Screen