diff --git a/data_adapter_oemof/build_datapackage.py b/data_adapter_oemof/build_datapackage.py
index 1089f54..16405db 100644
--- a/data_adapter_oemof/build_datapackage.py
+++ b/data_adapter_oemof/build_datapackage.py
@@ -482,7 +482,7 @@ def build_datapackage(
         parametrized_sequences = {}
         foreign_keys = {}
         # Iterate Elements
-        for process_name, struct in adapter.get_process_list().items():
+        for process_name, struct in adapter.structure.processes.items():
             process_data = adapter.get_process(process_name)
             timeseries = process_data.timeseries
             if isinstance(timeseries.columns, pd.MultiIndex):
diff --git a/data_adapter_oemof/mappings.py b/data_adapter_oemof/mappings.py
index 8e2e5df..b7d09fa 100644
--- a/data_adapter_oemof/mappings.py
+++ b/data_adapter_oemof/mappings.py
@@ -11,10 +11,7 @@
 
 logger = logging.getLogger()
 
-DEFAULT_MAPPING = {
-    "carrier": "carrier",
-    "tech": "tech",
-}
+DEFAULT_MAPPING = {}
 
 Field = collections.namedtuple(typename="Field", field_names=["name", "type"])