diff --git a/src/fmu/sumo/explorer/objects/_document_collection.py b/src/fmu/sumo/explorer/objects/_document_collection.py
index daca736b..0b23ab8f 100644
--- a/src/fmu/sumo/explorer/objects/_document_collection.py
+++ b/src/fmu/sumo/explorer/objects/_document_collection.py
@@ -231,7 +231,7 @@ async def _next_batch_async(self) -> List[Dict]:
         data = res.json()
         hits = data["hits"]
 
-        self._postprocess_batch_async(hits["hits"], pit)
+        await self._postprocess_batch_async(hits["hits"], pit)
 
         if self._pit is not None:
             self._new_pit_id = data["pit_id"]