diff --git a/homeassistant/helpers/discovery.py b/homeassistant/helpers/discovery.py
index 405861eeb75..34f9a95b3a4 100644
--- a/homeassistant/helpers/discovery.py
+++ b/homeassistant/helpers/discovery.py
@@ -119,7 +119,7 @@ def load_platform(hass, component, platform, discovered, hass_config):
 
     Target components will be loaded and an EVENT_PLATFORM_DISCOVERED will be
     fired to load the platform. The event will contain:
-        { ATTR_SERVICE = LOAD_PLATFORM + '.' + <<component>>
+        { ATTR_SERVICE = EVENT_LOAD_PLATFORM + '.' + <<component>>
           ATTR_PLATFORM = <<platform>>
           ATTR_DISCOVERED = <<discovery info>> }
 
@@ -137,7 +137,7 @@ async def async_load_platform(hass, component, platform, discovered,
 
     Target components will be loaded and an EVENT_PLATFORM_DISCOVERED will be
     fired to load the platform. The event will contain:
-        { ATTR_SERVICE = LOAD_PLATFORM + '.' + <<component>>
+        { ATTR_SERVICE = EVENT_LOAD_PLATFORM + '.' + <<component>>
           ATTR_PLATFORM = <<platform>>
           ATTR_DISCOVERED = <<discovery info>> }