diff --git a/source/_topics/templating.markdown b/source/_topics/templating.markdown
index 10ddbff78d9..af1f5f4f52c 100644
--- a/source/_topics/templating.markdown
+++ b/source/_topics/templating.markdown
@@ -131,7 +131,7 @@ Print out a list of all the sensor states.
 
 {{ as_timestamp(states.binary_sensor.garage_door.last_changed) }}
 
-{{ as_timestamp(now) - as_timestamp(states.binary_sensor.garage_door.last_changed) }}{% endraw %}
+{{ as_timestamp(now()) - as_timestamp(states.binary_sensor.garage_door.last_changed) }}{% endraw %}
 ```
 
 ### {% linkable_title Distance examples %}