diff --git a/homeassistant/components/template/fan.py b/homeassistant/components/template/fan.py
index 42790e618d9..606f18e5fe1 100644
--- a/homeassistant/components/template/fan.py
+++ b/homeassistant/components/template/fan.py
@@ -270,7 +270,7 @@ class TemplateFan(FanEntity):
     # pylint: disable=arguments-differ
     async def async_turn_on(self, speed: str = None) -> None:
         """Turn on the fan."""
-        await self._on_script.async_run(context=self._context)
+        await self._on_script.async_run({ATTR_SPEED: speed}, context=self._context)
         self._state = STATE_ON
 
         if speed is not None: