diff --git a/nixos/modules/services/web-servers/unit/default.nix b/nixos/modules/services/web-servers/unit/default.nix
index 2c5639b99f9..b07212580a5 100644
--- a/nixos/modules/services/web-servers/unit/default.nix
+++ b/nixos/modules/services/web-servers/unit/default.nix
@@ -93,7 +93,7 @@ in {
       wantedBy = [ "multi-user.target" ];
       path = with pkgs; [ curl ];
       preStart = ''
-        test -f '/run/unit/control.unit.sock' || rm -f '/run/unit/control.unit.sock'
+        test -f '${cfg.stateDir}/conf.json' || rm -f '${cfg.stateDir}/conf.json'
       '';
       postStart = ''
         curl -X PUT --data-binary '@${configFile}' --unix-socket '/run/unit/control.unit.sock' 'http://localhost/config'