diff --git a/services/dhcpcd b/services/dhcpcd
index f597672..184a843 100644
--- a/services/dhcpcd
+++ b/services/dhcpcd
@@ -3,4 +3,5 @@ type once
 target boot
 after dhcpcdmaster network
 
+tty /dev/null
 exec dhcpcd -n %0
diff --git a/services/dhcpcdmaster b/services/dhcpcdmaster
index 276a2f8..879497a 100644
--- a/services/dhcpcdmaster
+++ b/services/dhcpcdmaster
@@ -2,6 +2,7 @@ description "DHCP client - master service"
 type wait
 target boot
 after network
+tty /dev/null
 
 exec {
 	mkdir -p /var/db/dhcpcd
diff --git a/services/sysctl b/services/sysctl
index 0b30567..6664297 100755
--- a/services/sysctl
+++ b/services/sysctl
@@ -1,4 +1,5 @@
 description configure kernel paramters
+tty /dev/null
 exec sysctl --system
 type wait
 target boot