diff --git a/homeassistant/auth/__init__.py b/homeassistant/auth/__init__.py
index 0b749766263..c39657b6147 100644
--- a/homeassistant/auth/__init__.py
+++ b/homeassistant/auth/__init__.py
@@ -53,7 +53,7 @@ async def auth_manager_from_config(
 ) -> AuthManager:
     """Initialize an auth manager from config.
 
-    CORE_CONFIG_SCHEMA will make sure do duplicated auth providers or
+    CORE_CONFIG_SCHEMA will make sure no duplicated auth providers or
     mfa modules exist in configs.
     """
     store = auth_store.AuthStore(hass)