diff --git a/backend/cmd/main.go b/backend/cmd/main.go
index 03644e5ca..d5e4785fa 100644
--- a/backend/cmd/main.go
+++ b/backend/cmd/main.go
@@ -381,7 +381,6 @@ func selectDev(adjAddr map[string]string, conf Config) (pcap.Interface, error) {
 		for _, dev := range devs {
 			for _, addr := range dev.Addresses {
 				if addr.IP.String() == adjAddr["backend"] {
-					println(dev.Name)
 					return dev, nil
 				}
 			}
@@ -583,8 +582,8 @@ func getIPIPfilter() string {
 	return "ip[9] == 4"
 }
 
-func getUDPFilter(addrs []net.IP, backendAddr net.IP, _ uint16) string {
-	udpPort := "udp" // TODO use proper ports for the filter
+func getUDPFilter(addrs []net.IP, backendAddr net.IP, port uint16) string {
+	udpPort := fmt.Sprintf("udp port %d", port) // TODO use proper ports for the filter
 	srcUdpAddrs := common.Map(addrs, func(addr net.IP) string {
 		return fmt.Sprintf("(src host %s)", addr)
 	})
diff --git a/backend/internal/adj/adj.go b/backend/internal/adj/adj.go
index 7708aaa35..ddc627926 100644
--- a/backend/internal/adj/adj.go
+++ b/backend/internal/adj/adj.go
@@ -36,21 +36,17 @@ func NewADJ(AdjBranch string) (ADJ, error) {
 		}
 	}
 
-	type BoardList struct {
-		Boards map[string]string `json:"boards"`
-	}
-
-	var boardsList BoardList
+	var boardsList map[string]string
 	if err := json.Unmarshal(boardsRaw, &boardsList); err != nil {
 		return ADJ{}, err
 	}
 
-	boards, err := getBoards(boardsList.Boards)
+	boards, err := getBoards(boardsList)
 	if err != nil {
 		return ADJ{}, err
 	}
 
-	info.BoardIds, err = getBoardIds(boardsList.Boards)
+	info.BoardIds, err = getBoardIds(boardsList)
 	if err != nil {
 		return ADJ{}, err
 	}