diff --git a/crates/index-scheduler/src/batch.rs b/crates/index-scheduler/src/batch.rs
index fc6fb194c..cc730e286 100644
--- a/crates/index-scheduler/src/batch.rs
+++ b/crates/index-scheduler/src/batch.rs
@@ -496,7 +496,7 @@ impl IndexScheduler {
 
         // 5. We make a batch from the unprioritised tasks. Start by taking the next enqueued task.
         let task_id = if let Some(task_id) = enqueued.min() { task_id } else { return Ok(None) };
-        let task = self.get_task(rtxn, task_id)?.ok_or(Error::CorruptedTaskQueue)?;
+        let mut task = self.get_task(rtxn, task_id)?.ok_or(Error::CorruptedTaskQueue)?;
 
         // If the task is not associated with any index, verify that it is an index swap and
         // create the batch directly. Otherwise, get the index name associated with the task
@@ -506,6 +506,7 @@ impl IndexScheduler {
             index_name
         } else {
             assert!(matches!(&task.kind, KindWithContent::IndexSwap { swaps } if swaps.is_empty()));
+            current_batch.processing(Some(&mut task));
             return Ok(Some((Batch::IndexSwap { task }, current_batch)));
         };
 
diff --git a/crates/index-scheduler/src/snapshots/lib.rs/swap_indexes/third_empty_swap_processed.snap b/crates/index-scheduler/src/snapshots/lib.rs/swap_indexes/third_empty_swap_processed.snap
index 0f126b33a..77b1193a5 100644
--- a/crates/index-scheduler/src/snapshots/lib.rs/swap_indexes/third_empty_swap_processed.snap
+++ b/crates/index-scheduler/src/snapshots/lib.rs/swap_indexes/third_empty_swap_processed.snap
@@ -89,7 +89,7 @@ succeeded [0,1,2,3,4,5,6,]
 ----------------------------------------------------------------------
 ### Batches Kind:
 "indexCreation" [0,1,2,3,]
-"indexSwap" [4,5,]
+"indexSwap" [4,5,6,]
 ----------------------------------------------------------------------
 ### Batches Index Tasks:
 a [0,4,5,]
@@ -104,6 +104,7 @@ d [3,4,]
 [timestamp] [3,]
 [timestamp] [4,]
 [timestamp] [5,]
+[timestamp] [6,]
 ----------------------------------------------------------------------
 ### Batches Started At:
 [timestamp] [0,]