diff --git a/UserManual.md b/UserManual.md
index a794a6b..c27beb0 100644
--- a/UserManual.md
+++ b/UserManual.md
@@ -46,6 +46,7 @@
 #Source and [Tuners](Tuner)#
 
 * [Sound Card](SoundCard)
+* [Airspy](Airspy)
 * [Ettus Research B100](B100)
 * [Funcube Dongle Pro](FuncubeDonglePro)
 * [Funcube Dongle Pro Plus](FuncubeDongleProPlus)