diff --git a/direwolf/direwolf-transmit-dtmf-aprs.conf b/direwolf/direwolf-transmit-dtmf-aprs.conf
index 6e6e76ea..b78cabbc 100644
--- a/direwolf/direwolf-transmit-dtmf-aprs.conf
+++ b/direwolf/direwolf-transmit-dtmf-aprs.conf
@@ -1,4 +1,5 @@
 CHANNEL 0
+MODEM 1200
 MYCALL AMSAT
 ADEVICE hw:CARD=Device,DEV=0 hw:CARD=Headphones,DEV=0 
 DTMF