diff --git a/internal/neofs/neofs.go b/internal/neofs/neofs.go
index 5a8adbd1..9700cf66 100644
--- a/internal/neofs/neofs.go
+++ b/internal/neofs/neofs.go
@@ -259,6 +259,9 @@ func (x *NeoFS) CreateObject(ctx context.Context, prm layer.PrmObjectCreate) (oi
 		var lock object.Lock
 		lock.WriteMembers(prm.Locks)
 		obj.WriteLock(lock)
+
+		// we can't have locks and payload at the same time.
+		prm.Payload = bytes.NewReader(obj.Payload())
 	}
 
 	var prmObjPutInit client.PrmObjectPutInit