diff --git a/native/core/src/execution/operators/scan.rs b/native/core/src/execution/operators/scan.rs
index 4b9d76da28..409d064284 100644
--- a/native/core/src/execution/operators/scan.rs
+++ b/native/core/src/execution/operators/scan.rs
@@ -116,17 +116,16 @@ impl ScanExec {
             // This is a unit test. Input batches are seeded via `set_input_batch`.
             return Ok(());
         }
-        let mut timer = self.baseline_metrics.elapsed_compute().timer();
 
         let mut current_batch = self.batch.try_lock().unwrap();
         if current_batch.is_none() {
+            let mut timer = self.baseline_metrics.elapsed_compute().timer();
             let next_batch =
                 ScanExec::pull_next(self.exec_context_id, self.input_source.as_ref().unwrap())?;
             *current_batch = Some(next_batch);
+            timer.stop();
         }
 
-        timer.stop();
-
         Ok(())
     }