diff --git a/doc/THANKS b/doc/THANKS
index 4e982487b..25d3af260 100644
--- a/doc/THANKS
+++ b/doc/THANKS
@@ -122,6 +122,13 @@ David Guimaraes <skysbsb@gmail.com>
 Chris Hall <chris.hall@mod10.net>
     for coding the prettyprint.py library
 
+Mario Heiderich <mario.heiderich@gmail.com>
+Christian Matthies <ch0012@gmail.com>
+Lars H. Strojny <lars@strojny.net>
+    for their great tool PHPIDS included in sqlmap tree as
+    a set of rules for testing payloads against IDS detection,
+    http://php-ids.org
+
 Kristian Erik Hermansen <kristian.hermansen@gmail.com>
     for reporting a bug
     for donating to sqlmap development