diff --git a/homeassistant/helpers/entity_platform.py b/homeassistant/helpers/entity_platform.py
index 388c00bd177..2fc82567739 100644
--- a/homeassistant/helpers/entity_platform.py
+++ b/homeassistant/helpers/entity_platform.py
@@ -813,7 +813,7 @@ class EntityPlatform:
     def async_register_entity_service(
         self,
         name: str,
-        schema: dict[str, Any] | vol.Schema,
+        schema: dict[str | vol.Marker, Any] | vol.Schema,
         func: str | Callable[..., Any],
         required_features: Iterable[int] | None = None,
         supports_response: SupportsResponse = SupportsResponse.NONE,