diff --git a/.changelog/unreleased/bug-fixes/3860-serde-rename-batch-index.md b/.changelog/unreleased/bug-fixes/3860-serde-rename-batch-index.md
new file mode 100644
index 0000000000..f1d7c74dd8
--- /dev/null
+++ b/.changelog/unreleased/bug-fixes/3860-serde-rename-batch-index.md
@@ -0,0 +1,2 @@
+- Fixed the masp indexer client not being able to fetch the notes index from the
+  `namada-masp-indexer`. ([\#3860](https://github.com/anoma/namada/pull/3860))
\ No newline at end of file
diff --git a/crates/sdk/src/masp/utilities.rs b/crates/sdk/src/masp/utilities.rs
index 95c9565005..8f892bb295 100644
--- a/crates/sdk/src/masp/utilities.rs
+++ b/crates/sdk/src/masp/utilities.rs
@@ -563,8 +563,8 @@ impl MaspClient for IndexerMaspClient {
 
         #[derive(Deserialize)]
         struct Note {
-            // masp_tx_index: u64,
             note_position: usize,
+            #[serde(rename = "masp_tx_index")]
             batch_index: u32,
             block_index: u32,
             block_height: u64,