diff --git a/groundstation/rtl_tcp.service b/groundstation/rtl_tcp.service
index e2c3b3b7..ff899e9b 100644
--- a/groundstation/rtl_tcp.service
+++ b/groundstation/rtl_tcp.service
@@ -3,7 +3,7 @@ Description=RTL-TCP
 
 [Service]
 TimeoutStopSec = 5
-ExecStart=/bin/sh -c 'rtl_tcp -a $(hostname -I)'
+ExecStart=/bin/sh -c 'rtl_tcp -a $(hostname -I|cut -f1 -d " ")'
 WorkingDirectory=/home/pi
 StandardOutput=inherit
 StandardError=inherit