diff --git a/source/_docs/configuration/templating.markdown b/source/_docs/configuration/templating.markdown
index 77d92cf3504..375859dafe3 100644
--- a/source/_docs/configuration/templating.markdown
+++ b/source/_docs/configuration/templating.markdown
@@ -75,7 +75,7 @@ Not supported in [limited templates](#limited-templates).
 - `states('device_tracker.paulus')` will return the state string (not the object) of the given entity, `unknown` if it doesn't exist, `unavailable` if the object exists but is not yet available. 
 - `is_state('device_tracker.paulus', 'home')` will test if the given entity is the specified state.
 - `state_attr('device_tracker.paulus', 'battery')` will return the value of the attribute or None if it doesn't exist.
-- `is_state_attr('device_tracker.paulus', 'battery', 40)` will test if the given entity attribute is the specified state (in this case, a numeric value). Note that the attribute can be `None` and you want to check if it is `None`, you need to use `state_attr('sensor.my_sensor', 'attr') == None`. 
+- `is_state_attr('device_tracker.paulus', 'battery', 40)` will test if the given entity attribute is the specified state (in this case, a numeric value). Note that the attribute can be `None` and you want to check if it is `None`, you need to use `state_attr('sensor.my_sensor', 'attr') is none` or `state_attr('sensor.my_sensor', 'attr') == None` (note the difference in the capitalization of none in both versions). 
 <div class='note warning'>
 
   Avoid using `states.sensor.temperature.state`, instead use `states('sensor.temperature')`. It is strongly advised to use the `states()`, `is_state()`, `state_attr()` and `is_state_attr()` as much as possible, to avoid errors and error message when the entity isn't ready yet (e.g., during Home Assistant startup).