diff --git a/source/_integrations/opensky.markdown b/source/_integrations/opensky.markdown
index e20a4689b34..cedb489be79 100644
--- a/source/_integrations/opensky.markdown
+++ b/source/_integrations/opensky.markdown
@@ -51,6 +51,6 @@ automation:
     action:
       service: notify.mobile_app_<device_name>
       data_template:
-        message : 'Flight entry of {{ trigger.event.data.callsign }} '
+        message: 'Flight entry of {{ trigger.event.data.callsign }}'
 ```
 {% endraw %}