diff --git a/nixos/modules/system/boot/shutdown.nix b/nixos/modules/system/boot/shutdown.nix
index 68bc936c5b0..11041066e07 100644
--- a/nixos/modules/system/boot/shutdown.nix
+++ b/nixos/modules/system/boot/shutdown.nix
@@ -13,7 +13,7 @@ with lib;
 
       unitConfig = {
         DefaultDependencies = false;
-        ConditionVirtualization = "!systemd-nspawn";
+        ConditionPathExists = "/dev/rtc";
       };
 
       serviceConfig = {