diff --git a/data/formats-data.ts b/data/formats-data.ts
index 993a7f753f..3f6d219b0f 100644
--- a/data/formats-data.ts
+++ b/data/formats-data.ts
@@ -5848,7 +5848,7 @@ export const FormatsData: import('../sim/dex-species').SpeciesFormatsDataTable =
 	pecharunt: {
 		tier: "OU",
 		doublesTier: "(DUU)",
-		natDexTier: "UU",
+		natDexTier: "UUBL",
 	},
 	missingno: {
 		isNonstandard: "Custom",