diff --git a/TODO b/TODO
index cc6bf5a..e33b4e1 100644
--- a/TODO
+++ b/TODO
@@ -2,6 +2,7 @@ Future
 ======
 
 * Language stemming (needs to be implemented by Haystack first)
+* Refactor SearchBackend and SearchQuery to make use of the Xapian.Query object natively instead of passing query strings between them.
 
 Complete
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