diff --git a/dhcp.spec b/dhcp.spec
index 9c2b7b4..8217a42 100644
--- a/dhcp.spec
+++ b/dhcp.spec
@@ -2,7 +2,7 @@
 %define releasever %(echo %version | cut -d. -f1-3)
 Name:          dhcp
 Version:       4.3.1
-Release:       2mamba
+Release:       3mamba
 Summary:       The ISC DHCP (Dynamic Host Configuration Protocol) client
 Group:         System/Servers
 Vendor:        openmamba
@@ -208,6 +208,9 @@ grep "^send host-name" %{_sysconfdir}/dhclient.conf >/dev/null || {
 %doc RELNOTES doc
 
 %changelog
+* Mon Jan 19 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 4.3.1-3mamba
+- fix systemd service file (wrong pid reference)
+
 * Tue Dec 23 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 4.3.1-2mamba
 - dhclient.conf: use gethostname() as default send hostname
 - server: remove initscript; add systemd service file
diff --git a/dhcpd-sysconfig b/dhcpd-sysconfig
index b3365ee..b9c8269 100644
--- a/dhcpd-sysconfig
+++ b/dhcpd-sysconfig
@@ -1,3 +1,2 @@
 # Command line options here
-#DHCPDIFS="eth0"
 DHCPDARGS=
diff --git a/dhcpd@.service b/dhcpd@.service
index 2fc523d..79d90df 100644
--- a/dhcpd@.service
+++ b/dhcpd@.service
@@ -6,8 +6,8 @@ After=network.target
 [Service]
 EnvironmentFile=-/etc/sysconfig/dhcpd
 Type=forking
-PIDFile=/run/dhcpd.pid
-ExecStart=/sbin/dhcpd -q -pf /run/dhcpd4.pid %I $DHCPDARGS
+PIDFile=/run/dhcpd-%I.pid
+ExecStart=/sbin/dhcpd -q -pf /run/dhcpd-%I.pid %I $DHCPDARGS
 KillSignal=SIGINT
 
 [Install]