diff --git a/crates/engine/tree/src/tree/payload_validator.rs b/crates/engine/tree/src/tree/payload_validator.rs
index f97bc0bf3a..d246d2c149 100644
--- a/crates/engine/tree/src/tree/payload_validator.rs
+++ b/crates/engine/tree/src/tree/payload_validator.rs
@@ -1009,6 +1009,7 @@ where
             let _enter = debug_span!(
                 target: "engine::tree",
                 "execute tx",
+                tx_index = senders.len() - 1,
             )
             .entered();
             trace!(target: "engine::tree", "Executing transaction");