diff --git a/nixos/modules/services/matrix/matrix-alertmanager.nix b/nixos/modules/services/matrix/matrix-alertmanager.nix
index a00f808d0b66..89ff4dfb2324 100644
--- a/nixos/modules/services/matrix/matrix-alertmanager.nix
+++ b/nixos/modules/services/matrix/matrix-alertmanager.nix
@@ -112,6 +112,7 @@ in
         MATRIX_ROOMS = concatenatedRooms;
         MATRIX_USER = cfg.matrixUser;
         MENTION_ROOM = if cfg.mention then "1" else "0";
+        NODE_ENV = "production";
       };
 
       script = ''