diff --git a/components/ota/esphome.rst b/components/ota/esphome.rst
index ed97c343e7..d307d47872 100644
--- a/components/ota/esphome.rst
+++ b/components/ota/esphome.rst
@@ -27,6 +27,7 @@ expected. This is automatically enabled by this component, but it may be disable
 Configuration variables:
 ------------------------
 
+-  **platform** (*Required*, string): The platform used to initiate OTA.
 -  **password** (*Optional*, string): The password to use for updates.
 -  **port** (*Optional*, int): The port to use for OTA updates. Defaults: