diff -up rpcbind-0.2.4/systemd/rpcbind.service.in.orig rpcbind-0.2.4/systemd/rpcbind.service.in
--- rpcbind-0.2.4/systemd/rpcbind.service.in.orig	2017-12-16 15:49:07.830889473 -0500
+++ rpcbind-0.2.4/systemd/rpcbind.service.in	2017-12-16 15:49:43.156610673 -0500
@@ -12,6 +12,7 @@ Wants=rpcbind.target
 [Service]
 Type=notify
 # distro can provide a drop-in adding EnvironmentFile=-/??? if needed.
+EnvironmentFile=/etc/sysconfig/rpcbind
 ExecStart=@_sbindir@/rpcbind $RPCBIND_OPTIONS -w -f
 
 [Install]