diff --git a/custom_components/garbage_collection/sensor.py b/custom_components/garbage_collection/sensor.py
index f7deeba..fec28f4 100644
--- a/custom_components/garbage_collection/sensor.py
+++ b/custom_components/garbage_collection/sensor.py
@@ -195,8 +195,8 @@ class GarbageCollection(RestoreEntity):
                     const.CALENDAR_PLATFORM
                 ] = EntitiesCalendarData(self.hass)
                 _LOGGER.debug("Creating garbage_collection calendar")
-                await self.hass.config_entries.async_forward_entry_setup(
-                    self.config_entry, const.CALENDAR_PLATFORM
+                await self.hass.config_entries.async_forward_entry_setups(
+                    self.config_entry, [const.CALENDAR_PLATFORM]
                 )
 
             self.hass.data[const.DOMAIN][const.CALENDAR_PLATFORM].add_entity(
@@ -848,4 +848,4 @@ class BlankCollection(GarbageCollection):
             "entity_id": self.entity_id,
             "collection_dates": [],
         }
-        self.hass.bus.async_fire("garbage_collection_loaded", event_data)
+        self.hass.bus.async_fire("garbage_collection_loaded", event_data)
\ No newline at end of file