diff --git a/lib/qemu.sh b/lib/qemu.sh
index 8f0d1f6..74905dd 100644
--- a/lib/qemu.sh
+++ b/lib/qemu.sh
@@ -74,8 +74,7 @@ function qemu_stop_vm {
     local unix_path="/tmp/${vm_name}.qmp-sock"
 
     print_in_color "${COLOR_RED}" "Stop ${vm_name}"
-    echo '{ "execute": "qmp_capabilities" }' | socat - UNIX-CONNECT:"${unix_path}"
-    echo '{ "execute": "system_powerdown" }' | socat - UNIX-CONNECT:"${unix_path}"
+    echo -e '{ "execute": "qmp_capabilities" }\n{ "execute": "system_powerdown" }' | socat - UNIX-CONNECT:"${unix_path}" > /dev/null
 
 
     print_in_color "${COLOR_RED}" "Delete tap${tap_id}"
diff --git a/lib/subnet.sh b/lib/subnet.sh
index 3551973..5b7aaff 100644
--- a/lib/subnet.sh
+++ b/lib/subnet.sh
@@ -103,7 +103,7 @@ function delete_subnet {
     delete_in_db "subnet" "${subnet_name}"
     ip -n "${vpc_name}" route del "${subnet}" dev "br-${subnet_id}"
     ip                  link  del dev "vxlan-${vxlan_id}"
-    systemctl stop "dnsmasq@${vpc_name_br}-br-${subnet_id}.service"
+    systemctl stop "dnsmasq@${vpc_name}_br-${subnet_id}.service"
     rm /etc/dnsmasq.d/${vpc_name}_br-${subnet_id}.conf
     ebtables -D FORWARD -p arp --arp-op Request --arp-ip-dst "${gateway_ip}" --out-interface "br-${subnet_id}" -j DROP
     ebtables -D FORWARD --out-interface "br-${subnet_id}" -p IPv4 --ip-protocol udp --ip-source-port 67:68 --ip-destination-port 67:68 -j DROP