diff --git a/scripts/install b/scripts/install
index 76c9022..87f61dc 100755
--- a/scripts/install
+++ b/scripts/install
@@ -66,7 +66,7 @@ ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$ap
 
 pushd "$install_dir"
   ynh_use_nodejs
-  ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_npm peertube-runner register --url peertube_url --registration-token runner_token --runner-name $app_$(hostname)
+  ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_npm peertube-runner register --url peertube_url --registration-token runner_token --runner-name $app\_$(hostname)
 popd
 
 #=================================================