diff --git a/nixos/modules/services/misc/redmine.nix b/nixos/modules/services/misc/redmine.nix
index 8939ec31cd5a..731bd895c761 100644
--- a/nixos/modules/services/misc/redmine.nix
+++ b/nixos/modules/services/misc/redmine.nix
@@ -460,7 +460,7 @@ in
         Group = cfg.group;
         TimeoutSec = "300";
         WorkingDirectory = "${cfg.package}/share/redmine";
-        ExecStart = "${bundle} exec rails server -u webrick -e production -b ${toString cfg.address} -p ${toString cfg.port} -P '${cfg.stateDir}/redmine.pid'";
+        ExecStart = "${bundle} exec rails server -u webrick -e production -b ${toString cfg.address} -p ${toString cfg.port}";
         RuntimeDirectory = "redmine";
         RuntimeDirectoryMode = "0750";
         AmbientCapabilities = "";