diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index cea4244e032bd0d6028a20eca07140f85c2b4cd0..fd1033d518c6268dc3bf84fb23fa4d604b54dda3 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -392,6 +392,8 @@ int rhashtable_expand(struct rhashtable *ht)
 		}
 	}
 
+	synchronize_rcu();
+
 	bucket_table_free(old_tbl);
 	return 0;
 }