diff --git a/source/_components/ecobee.markdown b/source/_components/ecobee.markdown
index a3e6da2ceef..1d18fb430d1 100644
--- a/source/_components/ecobee.markdown
+++ b/source/_components/ecobee.markdown
@@ -61,3 +61,5 @@ Configuration variables:
   <img src='{{site_root}}/images/screenshots/ecobee-sensor-badges.png' />
   <img src='{{site_root}}/images/screenshots/ecobee-thermostat-card.png' />
 </p>
+
+If for whatever reason you delete and re-create your ecobee app at ecobee.com such that your developer API key changes, you will need to delete your `/conf/ecobee.conf file`. You will also need to update the `api_key:` in the `configuration.yaml` or `secrets.yaml` file.