diff --git a/doc/Dependencies.txt b/doc/Dependencies.txt
index 440f21b60..552212061 100644
--- a/doc/Dependencies.txt
+++ b/doc/Dependencies.txt
@@ -31,6 +31,7 @@ Dependencies to compile SFLphone-GTK
 Program              Version    Notes
 --------------------------------------------------------------------------------------
 libgtk2.0            2.2        
+gtkglext	     1.0
 dbus-glib            0.35       
 gnome-common
 --------------------------------------------------------------------------------------