diff --git a/homeassistant/components/caldav/calendar.py b/homeassistant/components/caldav/calendar.py
index b9f967d1a08..7591722b1ab 100644
--- a/homeassistant/components/caldav/calendar.py
+++ b/homeassistant/components/caldav/calendar.py
@@ -10,7 +10,7 @@ import voluptuous as vol
 
 from homeassistant.components.calendar import (
     ENTITY_ID_FORMAT,
-    PLATFORM_SCHEMA,
+    PLATFORM_SCHEMA as CALENDAR_PLATFORM_SCHEMA,
     CalendarEntity,
     CalendarEvent,
     is_offset_reached,
@@ -48,7 +48,7 @@ CONFIG_ENTRY_DEFAULT_DAYS = 7
 # Only allow VCALENDARs that support this component type
 SUPPORTED_COMPONENT = "VEVENT"
 
-PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
+PLATFORM_SCHEMA = CALENDAR_PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_URL): vol.Url(),
         vol.Optional(CONF_CALENDARS, default=[]): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/todoist/calendar.py b/homeassistant/components/todoist/calendar.py
index baa7103f7eb..1c6f40005c1 100644
--- a/homeassistant/components/todoist/calendar.py
+++ b/homeassistant/components/todoist/calendar.py
@@ -14,7 +14,7 @@ from todoist_api_python.models import Due, Label, Task
 import voluptuous as vol
 
 from homeassistant.components.calendar import (
-    PLATFORM_SCHEMA,
+    PLATFORM_SCHEMA as CALENDAR_PLATFORM_SCHEMA,
     CalendarEntity,
     CalendarEvent,
 )
@@ -82,7 +82,7 @@ NEW_TASK_SERVICE_SCHEMA = vol.Schema(
     }
 )
 
-PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
+PLATFORM_SCHEMA = CALENDAR_PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_TOKEN): cv.string,
         vol.Optional(CONF_EXTRA_PROJECTS, default=[]): vol.All(