diff --git a/scripts/install b/scripts/install
index 5f9534a..897a7d0 100755
--- a/scripts/install
+++ b/scripts/install
@@ -33,9 +33,9 @@ ynh_script_progression "Adding system configurations related to $app..."
 
 ynh_config_add_nginx
 
-ynh_add_systemd_config --service= "${app}-backend" --template="$backend"
+ynh_add_systemd_config --service= "${app}-backend" --template="backend"
 
-ynh_add_systemd_config --service= "${app}-frontend" --template="$frontend"
+ynh_add_systemd_config --service= "${app}-frontend" --template="frontend"
 
 yunohost service add "${app}-backend" --description="a beautiful and performant vault to save all your files in the cloud" --log="/var/log/$app/$app.log"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index c9ea744..77b7629 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -34,9 +34,9 @@ ynh_script_progression "Upgrading system configurations related to $app..."
 
 ynh_config_add_nginx
 
-ynh_add_systemd_config --service= "${app}-backend" --template="$backend"
+ynh_add_systemd_config --service= "${app}-backend" --template="backend"
 
-ynh_add_systemd_config --service= "${app}-frontend" --template="$frontend"
+ynh_add_systemd_config --service= "${app}-frontend" --template="frontend"
 
 yunohost service add "${app}-backend" --description="a beautiful and performant vault to save all your files in the cloud" --log="/var/log/$app/$app.log"