diff --git a/install-pingfinder.sh b/install-pingfinder.sh
index 68c8486..50d90f4 100644
--- a/install-pingfinder.sh
+++ b/install-pingfinder.sh
@@ -1,8 +1,14 @@
 #!/bin/sh
 set -euo pipefail
 
+if ! systemd-notify --booted; then
+  echo "Systemd is required"
+  exit 1
+fi
+
+
 if ! [ $(id -u) = 0 ]; then
-   echo "Run this as root!"
+   echo "Must be run as root"
    exit 1
 fi
 
@@ -13,4 +19,5 @@ cp etc/systemd/system/pingfinder.timer /etc/systemd/system/pingfinder.timer
 cp usr/local/bin/pingfinder.sh /usr/local/bin/pingfinder.sh
 chmod +x /usr/local/bin/pingfinder.sh
 
+systemctl daemon-reload
 systemctl enable pingfinder.timer
\ No newline at end of file