diff --git a/pyqt/clustering/gui_clustering.py b/pyqt/clustering/gui_clustering.py
index 339e172ee7e905029abdfe8ab8dd7ebf8e742976..1876f9abff21c459353cc3fd64524bac06e562e8 100644
--- a/pyqt/clustering/gui_clustering.py
+++ b/pyqt/clustering/gui_clustering.py
@@ -62,7 +62,7 @@ class ClusteringWindow(QtWidgets.QMainWindow, Ui_MainWindow):
         objlist = clust.launch(labelmap)
 
         # Save objlist:
-        ol.write_xml(objlist, path_objl)
+        ol.write(objlist, path_objl)
 
 if __name__ == "__main__":
     app = QtWidgets.QApplication(sys.argv)
diff --git a/pyqt/train/gui_train.py b/pyqt/train/gui_train.py
index be06fd43dd2b01a174183ff6728d1fe93c797ddf..bd37aab36f90af26a344b4618599b265ed82a662 100644
--- a/pyqt/train/gui_train.py
+++ b/pyqt/train/gui_train.py
@@ -91,8 +91,8 @@ class TrainingWindow(QtWidgets.QMainWindow, Ui_MainWindow):
         trainer.set_observer(core.observer_gui(self.print_signal))
 
         # Load objlists:
-        objl_train = ol.read_xml(path_objl_train)
-        objl_valid = ol.read_xml(path_objl_valid)
+        objl_train = ol.read(path_objl_train)
+        objl_valid = ol.read(path_objl_valid)
 
         # Launch training:
         trainer.launch(path_data, path_target, objl_train, objl_valid)