diff --git a/force_bdss/base_extension_plugin.py b/force_bdss/base_extension_plugin.py
index c94b622a6ac546a32610da49f70e600b13e99f04..baaeb4261bd326003d7ce0cd176fd4b51c82abce 100644
--- a/force_bdss/base_extension_plugin.py
+++ b/force_bdss/base_extension_plugin.py
@@ -5,7 +5,6 @@ from .notification_listeners.i_notification_listener_factory import \
     INotificationListenerFactory
 from .ids import ExtensionPointID
 from .data_sources.i_data_source_factory import IDataSourceFactory
-from .kpi.i_kpi_calculator_factory import IKPICalculatorFactory
 from .mco.i_mco_factory import IMCOFactory
 from .ui_hooks.i_ui_hooks_factory import IUIHooksFactory
 
@@ -37,12 +36,6 @@ class BaseExtensionPlugin(Plugin):
         contributes_to=ExtensionPointID.DATA_SOURCE_FACTORIES
     )
 
-    #: A list of the available KPI calculators this plugin exports.
-    kpi_calculator_factories = List(
-        IKPICalculatorFactory,
-        contributes_to=ExtensionPointID.KPI_CALCULATOR_FACTORIES
-    )
-
     notification_listener_factories = List(
         INotificationListenerFactory,
         contributes_to=ExtensionPointID.NOTIFICATION_LISTENER_FACTORIES