diff --git a/README.md b/README.md
index df5127d..1ab385d 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ This mod can be configured via `minetest.conf`.
 Currently, these settings are recognized:
 
 * `central_message_max`: Limit the number of messages displayed at once, by providing a number. Use `0` for no limit. Default: `7`
-* `central_message_time`: How long (in second) a message is shown. Default: `5`
+* `central_message_time`: How long (in seconds) a message is shown. Default: `5`
 * `central_message_color`: Set the message color of all messages. Value must be of format `(R,G,B)`. Default: `(255,255,255)` (white).