diff --git a/homeassistant/helpers/discovery.py b/homeassistant/helpers/discovery.py
index 4b5a0117be7..2e14759b814 100644
--- a/homeassistant/helpers/discovery.py
+++ b/homeassistant/helpers/discovery.py
@@ -152,8 +152,11 @@ async def async_load_platform(
 
     Use `async_listen_platform` to register a callback for these events.
 
-    Warning: Do not await this inside a setup method to avoid a dead lock.
-    Use `hass.async_create_task(async_load_platform(..))` instead.
+    Warning: This method can load a base component if its not loaded which
+    can take a long time since base components currently have to import
+    every platform integration listed under it to do config validation.
+    To avoid waiting for this, use
+    `hass.async_create_task(async_load_platform(..))` instead.
     """
     assert hass_config is not None, "You need to pass in the real hass config"