diff --git a/apps/web/src/pages/api/trpc/[trpc].ts b/apps/web/src/pages/api/trpc/[trpc].ts
index 8b89856a5..b21a2c655 100644
--- a/apps/web/src/pages/api/trpc/[trpc].ts
+++ b/apps/web/src/pages/api/trpc/[trpc].ts
@@ -39,6 +39,7 @@ const trpcApiHandler = createNextApiHandler<AppRouter>({
         return {
           id: session.user.id,
           isGuest: session.user.email === null,
+          locale: session.user.locale ?? undefined,
         };
       },
       posthogClient: posthog || undefined,
diff --git a/packages/backend/trpc/context.ts b/packages/backend/trpc/context.ts
index 1106c123f..c3e6388df 100644
--- a/packages/backend/trpc/context.ts
+++ b/packages/backend/trpc/context.ts
@@ -6,6 +6,7 @@ import type { PostHog } from "posthog-node";
 export type GetUserFn = (opts: CreateNextContextOptions) => Promise<{
   id: string;
   isGuest: boolean;
+  locale?: string;
 } | null>;
 
 export interface TRPCContextParams {