diff --git a/source/_integrations/filesize.markdown b/source/_integrations/filesize.markdown
index 0b51840c106..7be864a7055 100644
--- a/source/_integrations/filesize.markdown
+++ b/source/_integrations/filesize.markdown
@@ -21,6 +21,8 @@ The `filesize` sensor is for displaying the size in MB of a file.
 
 File paths must also be added to [allowlist_external_dirs](/docs/configuration/basic/) in your `configuration.yaml`.
 
+File paths should be absolute paths. For example: `/config/home-assistant_v2.db` to monitor the size of the default database.
+
 </div>
 
 {% include integrations/config_flow.md %}