diff --git a/groundstation/aprs.sh b/groundstation/aprs.sh
index 15d9c2df..a0af0ea8 100755
--- a/groundstation/aprs.sh
+++ b/groundstation/aprs.sh
@@ -31,7 +31,7 @@ sleep 1
 
 direwolf -t 0 &
 
-rtl_fm -M fm -f 144.39M -s 48k | aplay -D hw:2,0,0 -r 48000 -t raw -f S16_LE -c 1
+rtl_fm -M fm -f 144.39M -s 48k | aplay -D hw:3,0,0 -r 48000 -t raw -f S16_LE -c 1