diff --git a/nixos/modules/services/misc/redmine.nix b/nixos/modules/services/misc/redmine.nix
index 4b5d3dab5ad2..1253bae48a6d 100644
--- a/nixos/modules/services/misc/redmine.nix
+++ b/nixos/modules/services/misc/redmine.nix
@@ -461,6 +461,7 @@ in
         CapabilityBoundingSet = "";
         LockPersonality = true;
         MemoryDenyWriteExecute = true;
+        MountAPIVFS = true;
         NoNewPrivileges = true;
         PrivateDevices = true;
         PrivateMounts = true;