diff --git a/ui/core/proto_utils/database.ts b/ui/core/proto_utils/database.ts
index f80becc117..e511e4bdd5 100644
--- a/ui/core/proto_utils/database.ts
+++ b/ui/core/proto_utils/database.ts
@@ -19,7 +19,7 @@ import { Consumable, ItemEffectRandPropPoints, SimDatabase } from '../proto/db';
 import { SpellEffect } from '../proto/spell';
 import { GlyphID, IconData, UIDatabase, UIEnchant as Enchant, UIGem as Gem, UIItem as Item, UINPC as Npc, UIZone as Zone } from '../proto/ui.js';
 import { distinct } from '../utils.js';
-import { WOWHEAD_EXPANSION_ENV } from '../wowhead';
+import { WOWHEAD_EXPANSION_ENV, getWowheadLanguageId } from '../wowhead';
 import { EquippedItem } from './equipped_item.js';
 import { Gear, ItemSwapGear } from './gear.js';
 import { gemEligibleForSocket, gemMatchesSocket } from './gems.js';
@@ -400,7 +400,7 @@ export class Database {
 		return Database.getWowheadTooltipData(id, 'spell', { signal: options?.signal });
 	}
 	private static async getWowheadTooltipData(id: number, tooltipPostfix: string, options: { signal?: AbortSignal } = {}): Promise<IconData> {
-		const url = `https://nether.wowhead.com/mop-classic/tooltip/${tooltipPostfix}/${id}?lvl=${CHARACTER_LEVEL}&dataEnv=${WOWHEAD_EXPANSION_ENV}`;
+		const url = `https://nether.wowhead.com/mop-classic/tooltip/${tooltipPostfix}/${id}?lvl=${CHARACTER_LEVEL}&dataEnv=${WOWHEAD_EXPANSION_ENV}&locale=${getWowheadLanguageId()}`;
 		try {
 			const response = await fetch(url, { signal: options?.signal });
 			const json = await response.json();
diff --git a/ui/core/wowhead.ts b/ui/core/wowhead.ts
index e0853fc5fc..1f62797395 100644
--- a/ui/core/wowhead.ts
+++ b/ui/core/wowhead.ts
@@ -2,6 +2,22 @@ import { getLang } from '../i18n/locale_service';
 import { CHARACTER_LEVEL } from './constants/mechanics';
 import { Database } from './proto_utils/database';
 
+const DEFAULT_LANG_ID = 0;
+
+//refer to Wowhead locale Ids
+const LANG_ID_MAP: Record<string, number> = {
+  ko: 1,
+  fr: 2,
+  de: 3,
+  cn: 4,
+  es: 6,
+  ru: 7,
+  pt: 8,
+  it: 9,
+  tw: 10,
+  mx: 11,
+} as const;
+
 export type WowheadTooltipItemParams = {
 	/**
 	 * @description Item ID
@@ -142,3 +158,9 @@ export function getWowheadLanguagePrefix(): string {
 	const lang = getLang();
 	return lang === 'en' ? '' : `${lang}/`;
 }
+
+// Map language code to numeric Id
+export const getWowheadLanguageId = (lang: string = getLang()): number => {
+	const normalized = lang.toLowerCase();
+	return LANG_ID_MAP[normalized] ?? DEFAULT_LANG_ID;
+};