diff --git a/nixos/linux.nix b/nixos/linux.nix
index d8f59f6..7284857 100644
--- a/nixos/linux.nix
+++ b/nixos/linux.nix
@@ -32,9 +32,10 @@
   pullomatic = "${pullomaticPkg}/bin/pullomatic";
 
   start-arion-run = pkgs.writeShellScriptBin "start-arion-run" ''
+    set -e
     cd /root/petersweb-infra/nixos/arion
-    ${pkgs.arion}/bin/arion down
-    ${pkgs.arion}/bin/arion up -d
+    ${pkgs.arion}/bin/arion down >> /var/log/start-arion-run.log
+    ${pkgs.arion}/bin/arion up -d >> /var/log/start-arion-run.log
   '';
 in {
   imports = [