diff --git a/direwolf/direwolf-transmit-dtmf-fsk.conf b/direwolf/direwolf-transmit-dtmf-fsk.conf
index 780798f8..f197e583 100644
--- a/direwolf/direwolf-transmit-dtmf-fsk.conf
+++ b/direwolf/direwolf-transmit-dtmf-fsk.conf
@@ -1,4 +1,4 @@
-ADEVICE hw:CARD=Device,DEV=0 hw:CARD=Headphones,DEV=0 
+ADEVICE hw:CARD=Loopback,DEV=0 hw:CARD=Headphones,DEV=0 
 MYCALL AMSAT
 CHANNEL 0
 MODEM 1200