diff --git a/install.sh b/install.sh
index ed1e80d..e9d83bf 100755
--- a/install.sh
+++ b/install.sh
@@ -11,7 +11,7 @@ echo "Copying Systemd units to system directory..."
 sudo cp $run_directory/systemd-templates/dns-update.service /etc/systemd/system/
 sudo cp $run_directory/systemd-templates/dns-update.timer /etc/systemd/system/
 sudo sed -i -e "s/PH_USER/$(whoami)/g" /etc/systemd/system/dns-update.service
-sudo sed -i -e "s:PH_DIRECTORY:$(pwd):g" /etc/systemd/system/dns-update.service
+sudo sed -i -e "s:PH_DIRECTORY:$run_directory:g" /etc/systemd/system/dns-update.service
 
 echo "Reloading Systemd..."
 sudo systemctl daemon-reload