diff --git a/server/src/core/server/graph/plugins/helpers.ts b/server/src/core/server/graph/plugins/helpers.ts
index e5f6c41543..94465e66f2 100644
--- a/server/src/core/server/graph/plugins/helpers.ts
+++ b/server/src/core/server/graph/plugins/helpers.ts
@@ -101,7 +101,7 @@ function hoistCoralErrorExtensions(
   }
 
   // Get the translation bundle.
-  const bundle = ctx.i18n.getBundle(ctx.lang);
+  const bundle = ctx.i18n.getBundle(ctx.tenant ? ctx.tenant.locale : ctx.lang);
 
   // Translate the extensions.
   const extensions = originalError.serializeExtensions(bundle, ctx.id);