diff --git a/nixos/modules/system/activation/switch-to-configuration.pl b/nixos/modules/system/activation/switch-to-configuration.pl
index f39549db883..9a4c635402d 100755
--- a/nixos/modules/system/activation/switch-to-configuration.pl
+++ b/nixos/modules/system/activation/switch-to-configuration.pl
@@ -167,7 +167,7 @@ sub get_active_units {
 # Takes the name of the unit as an argument and returns a bool whether the unit is active or not.
 sub unit_is_active {
     my ($unit_name) = @_;
-    my $units = busctl_call_systemd1_mgr("ListUnitsByNames", "as", 1, $unit_name)->{data}->[0];
+    my $units = busctl_call_systemd1_mgr("ListUnitsByNames", "as", 1, , "--", $unit_name)->{data}->[0];
     if (scalar(@{$units}) == 0) {
         return 0;
     }