diff --git a/docs/configuration.md b/docs/configuration.md
index e54ebb0..8bb6091 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -683,7 +683,7 @@ The name of the city and country to fetch weather information for. Attempting to
 Whether to show the temperature in celsius or fahrenheit, possible values are `metric` or `imperial`.
 
 #### `hour-format`
-Whether to show the hours of the day in 12-hour format or 24-hour format
+Whether to show the hours of the day in 12-hour format or 24-hour format. Possible values are `12h` and `24h`.
 
 ##### `hide-location`
 Optionally don't display the location name on the widget.
@@ -1136,4 +1136,4 @@ Example:
 The source of the iframe.
 
 ##### `height`
-The height of the iframe. The minimum allowed height is 50.
\ No newline at end of file
+The height of the iframe. The minimum allowed height is 50.