diff --git a/roles/dhcpd/defaults/main.yml b/roles/dhcpd/defaults/main.yml
index f87abc1..ed7484c 100644
--- a/roles/dhcpd/defaults/main.yml
+++ b/roles/dhcpd/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 
-dhcp_mtu: 1280
-dhcp_first: "{{ batman_ipv4 | ipaddr('512') | ipaddr('address') }}"
-dhcp_last: "{{ batman_ipv4 | ipaddr('2558') | ipaddr('address') }}"
+dhcpd_mtu: 1280
+dhcpd_first: "{{ batman_ipv4 | ipaddr('512') | ipaddr('address') }}"
+dhcpd_last: "{{ batman_ipv4 | ipaddr('2558') | ipaddr('address') }}"
 name_server: "{{ batman_ipv4 | ipaddr('address') }}"
diff --git a/roles/dhcpd/templates/dhcpd.conf.j2 b/roles/dhcpd/templates/dhcpd.conf.j2
index 285ca66..d86f69d 100644
--- a/roles/dhcpd/templates/dhcpd.conf.j2
+++ b/roles/dhcpd/templates/dhcpd.conf.j2
@@ -24,8 +24,8 @@ log-facility local7;
 # Freifunk Regensburg
 subnet {{ batman_ipv4 | ipaddr('network') }} netmask {{ batman_ipv4 | ipaddr('netmask') }} {
   option routers {{ batman_ipv4 | ipaddr('address') }};
-  option interface-mtu {{ dhcp_mtu }};
+  option interface-mtu {{ dhcpd_mtu }};
   pool {
-    range {{ dhcp_first }} {{ dhcp_last }} ;
+    range {{ dhcpd_first }} {{ dhcpd_last }} ;
   }
 }