diff --git a/app/modules/in-game-lists/weapon-alt-names.ts b/app/modules/in-game-lists/weapon-alt-names.ts
index f98f4abeb..cce1fb630 100644
--- a/app/modules/in-game-lists/weapon-alt-names.ts
+++ b/app/modules/in-game-lists/weapon-alt-names.ts
@@ -16,6 +16,7 @@ export const weaponAltNames = new Map<MainWeaponId, string[] | string>()
   .set(3001, "bucket")
   .set(4001, "zimi")
   .set(4030, "bp")
+  .set(4031, "bpn")
   .set(5001, "napples")
   .set(5030, "vds")
   .set(5031, "cds")