diff --git a/image_prediction/pipeline.py b/image_prediction/pipeline.py
index 0be6b55..7bf84b5 100644
--- a/image_prediction/pipeline.py
+++ b/image_prediction/pipeline.py
@@ -35,9 +35,6 @@ class Pipeline:
         def join_prediction_and_metadata(prd, mdt):
             return {"classification": prd, **mdt}
 
-        def process_batch(batch):
-            classifications, metadata = juxt(left, right)(batch)
-            return starmap(join_prediction_and_metadata, zip(classifications, metadata))
 
         # --------
         # -- -- -- --
@@ -55,7 +52,9 @@ class Pipeline:
         self.pipe = rcompose(
             extractor,
             batcher,
-            lift(process_batch),
+            lift(juxt(left, right)),
+            starlift(zip),
+            lift(starlift(join_prediction_and_metadata)),
             chain.from_iterable,
             formatter,
         )