diff --git a/source/_components/sensor.filesize.markdown b/source/_components/sensor.filesize.markdown
index 91eb16037ce..8c46e8c1b29 100644
--- a/source/_components/sensor.filesize.markdown
+++ b/source/_components/sensor.filesize.markdown
@@ -13,7 +13,7 @@ ha_iot_class: "Local Polling"
 ha_release: 0.64
 ---
 
-Component for displaying the size of a file. Note that paths must be added to [whitelist_external_dirs](https://home-assistant.io/docs/configuration/basic/).
+Component for displaying the size in MB of a file. Note that paths must be added to [whitelist_external_dirs](https://home-assistant.io/docs/configuration/basic/).
 Add to your config:
 
 ```yaml