diff --git a/rust/vectordb/src/query.rs b/rust/vectordb/src/query.rs
index 372ec7e9..fb7bbb38 100644
--- a/rust/vectordb/src/query.rs
+++ b/rust/vectordb/src/query.rs
@@ -53,7 +53,7 @@ impl Query {
             nprobes: 20,
             refine_factor: None,
             metric_type: None,
-            use_index: false,
+            use_index: true,
             filter: None,
             select: None,
         }