diff --git a/installation/install-openems.sh b/installation/install-openems.sh
index 150e489..af9d372 100644
--- a/installation/install-openems.sh
+++ b/installation/install-openems.sh
@@ -42,7 +42,7 @@ echo -e "${GREEN}done${NC}"
 echo -e "${GREEN}setting up openems system service...${NC}"
 
 # setup openems service
-sudo cp openems.service /etc/systemd/system/openems.service
+wget -O /etc/systemd/system/openems.service https://git.mumme-it.de/Mumme-IT/openems-build/src/branch/main/installation/openems.service
 
 # setup openems config dir
 sudo mkdir -p /etc/openems.d
@@ -66,7 +66,7 @@ wget -O ~/openems-ui.zip https://git.mumme-it.de/Mumme-IT/openems-build/raw/bran
 sudo unzip -o ~/openems-ui.zip -d /var/www/openems/html
 sudo rm ~/openems-ui.zip
 
-sudo cp nginx-config /etc/nginx/sites-available/openems
+wget -O /etc/nginx/sites-available/openems https://git.mumme-it.de/Mumme-IT/openems-build/src/branch/main/installation/nginx-config
 sudo ln -sf /etc/nginx/sites-available/openems "/etc/nginx/sites-enabled/$host"
 
 if $ui_default; then