diff --git a/README.org b/README.org
index 948d1b1..8ca3f9f 100644
--- a/README.org
+++ b/README.org
@@ -270,3 +270,5 @@
 
   This program  is was born  also with  the help of  CCCP: "Collettivo
   Computer Club Palermo".
+
+  Also thanks to "barbar" for testing of the installation scripts.
diff --git a/README.txt b/README.txt
index 700da45..a735b82 100644
--- a/README.txt
+++ b/README.txt
@@ -339,3 +339,5 @@ Table of Contents
 
   This program is was born also with the help of CCCP: "Collettivo
   Computer Club Palermo".
+
+  Also thanks to "barbar" for testing of the installation scripts.
diff --git a/doc/man.org b/doc/man.org
index 638e8df..f0b11f6 100644
--- a/doc/man.org
+++ b/doc/man.org
@@ -239,3 +239,5 @@
 
   This program is was born also with the help of CCCP: "Collettivo Computer
   Club Palermo".
+
+  Also thanks to "barbar" for testing of the installation scripts.
diff --git a/doc/tinmop.man b/doc/tinmop.man
index 0b62541..74b0905 100644
--- a/doc/tinmop.man
+++ b/doc/tinmop.man
@@ -309,3 +309,6 @@ in the file LINCENSES.org
 .PP
 This program is was born also with the help of CCCP: "Collettivo Computer
 Club Palermo".
+
+.PP
+Also thanks to "barbar" for testing of the installation scripts.