diff --git a/files/etc/default/zuul-web b/files/etc/default/zuul-web
deleted file mode 100644
index 3482b32..0000000
--- a/files/etc/default/zuul-web
+++ /dev/null
@@ -1,10 +0,0 @@
-# This file is generated by Ansible
-#  DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
-#
-
-# The prefix used when zuul-scheduler was installed. Be sure to update this value
-# if you are using a virtualenv.
-PREFIX=/usr/local
-
-# The user used to start zuul-scheduler service.
-RUNASUSER=zuul
diff --git a/templates/etc/systemd/system/zuul-executor.service b/templates/etc/systemd/system/zuul-executor.service
index c2e0a14..afc9450 100644
--- a/templates/etc/systemd/system/zuul-executor.service
+++ b/templates/etc/systemd/system/zuul-executor.service
@@ -4,11 +4,10 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-Environment="PREFIX=/usr/local"
 Group=zuul
 User=zuul
-ExecStart=/bin/sh -c "${PREFIX}/bin/zuul-executor -d"
-ExecStop=/bin/sh -c "${PREFIX}/bin/zuul-executor stop"
+ExecStart={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-executor -d
+ExecStop={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-executor stop
 
 [Install]
 WantedBy=multi-user.target
diff --git a/templates/etc/systemd/system/zuul-fingergw.service b/templates/etc/systemd/system/zuul-fingergw.service
index 1853d97..815860f 100644
--- a/templates/etc/systemd/system/zuul-fingergw.service
+++ b/templates/etc/systemd/system/zuul-fingergw.service
@@ -4,11 +4,10 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-Environment="PREFIX=/usr/local"
 Group=root
 User=root
-ExecStart=/bin/sh -c "${PREFIX}/bin/zuul-fingergw -d"
-ExecStop=/bin/sh -c "${PREFIX}/bin/zuul-fingergw stop"
+ExecStart={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-fingergw -d
+ExecStop={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-fingergw stop
 
 [Install]
 WantedBy=multi-user.target
diff --git a/templates/etc/systemd/system/zuul-merger.service b/templates/etc/systemd/system/zuul-merger.service
index 940033b..874b7fa 100644
--- a/templates/etc/systemd/system/zuul-merger.service
+++ b/templates/etc/systemd/system/zuul-merger.service
@@ -4,11 +4,10 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-Environment="PREFIX=/usr/local"
 Group=zuul
 User=zuul
-ExecStart=/bin/sh -c "${PREFIX}/bin/zuul-merger -d"
-ExecStop=/bin/sh -c "${PREFIX}/bin/zuul-merger stop"
+ExecStart={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-merger -d
+ExecStop={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-merger stop
 
 [Install]
 WantedBy=multi-user.target
diff --git a/templates/etc/systemd/system/zuul-scheduler.service b/templates/etc/systemd/system/zuul-scheduler.service
index 96bf6b9..763078a 100644
--- a/templates/etc/systemd/system/zuul-scheduler.service
+++ b/templates/etc/systemd/system/zuul-scheduler.service
@@ -4,11 +4,10 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-Environment="PREFIX=/usr/local"
 Group=zuul
 User=zuul
-ExecStart=/bin/sh -c "${PREFIX}/bin/zuul-scheduler -d"
-ExecStop=/bin/sh -c "${PREFIX}/bin/zuul-scheduler stop"
+ExecStart={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-scheduler -d
+ExecStop={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-scheduler stop
 ExecReload=/bin/kill -HUP $MAINPID
 
 [Install]
diff --git a/templates/etc/systemd/system/zuul-web.service b/templates/etc/systemd/system/zuul-web.service
index af565f1..40f65d4 100644
--- a/templates/etc/systemd/system/zuul-web.service
+++ b/templates/etc/systemd/system/zuul-web.service
@@ -4,10 +4,9 @@ After=syslog.target network.target
 
 [Service]
 Type=simple
-Environment="PREFIX=/usr/local"
 Group=zuul
 User=zuul
-ExecStart=/bin/sh -c "${PREFIX}/bin/zuul-web -d"
+ExecStart={{ zuul_pip_virtualenv | default('/usr/local') }}/bin/zuul-web -d
 
 [Install]
 WantedBy=multi-user.target