diff --git a/faiss/python/swigfaiss.swig b/faiss/python/swigfaiss.swig
index 2236b399c3..67d903bd92 100644
--- a/faiss/python/swigfaiss.swig
+++ b/faiss/python/swigfaiss.swig
@@ -768,6 +768,8 @@ struct faiss::simd16uint16 {};
     DOWNCAST ( IndexShardsIVF )
     DOWNCAST2 ( IndexShards, IndexShardsTemplateT_faiss__Index_t )
     DOWNCAST2 ( IndexReplicas, IndexReplicasTemplateT_faiss__Index_t )
+    DOWNCAST ( IndexRaBitQ )
+    DOWNCAST ( IndexIVFRaBitQ )
     DOWNCAST ( IndexIVFIndependentQuantizer)
     DOWNCAST ( IndexIVFPQR )
     DOWNCAST ( IndexIVFPQ )