diff --git a/nixos/modules/services/admin/pgadmin.nix b/nixos/modules/services/admin/pgadmin.nix
index 4a5f34ab084b..981ae1518b57 100644
--- a/nixos/modules/services/admin/pgadmin.nix
+++ b/nixos/modules/services/admin/pgadmin.nix
@@ -239,6 +239,7 @@ in
         PrivateDevices = true;
         PrivateMounts = true;
         PrivateTmp = true;
+        PrivateUsers = true;
         ProtectClock = true;
         ProtectControlGroups = true;
         ProtectHome = true;