diff --git a/dhcpd.service b/dhcpd.service
index 85c5b75..a4251d4 100644
--- a/dhcpd.service
+++ b/dhcpd.service
@@ -1,5 +1,6 @@
 [Unit]
 Description=DHCPv4 Server Daemon
+Documentation=man:dhcpd(8) man:dhcpd.conf(5)
 After=network.target
 
 [Service]
diff --git a/dhcpd6.service b/dhcpd6.service
index 741e963..4f48dd0 100644
--- a/dhcpd6.service
+++ b/dhcpd6.service
@@ -1,5 +1,6 @@
 [Unit]
 Description=DHCPv6 Server Daemon
+Documentation=man:dhcpd(8) man:dhcpd.conf(5)
 After=network.target
 
 [Service]
diff --git a/dhcrelay.service b/dhcrelay.service
index 939eafb..9302900 100644
--- a/dhcrelay.service
+++ b/dhcrelay.service
@@ -1,5 +1,6 @@
 [Unit]
 Description=DHCP Relay Agent Daemon
+Documentation=man:dhcrelay(8)
 After=network.target
 
 [Service]