diff --git a/hledger/Hledger/Cli/Commands/Check.txt b/hledger/Hledger/Cli/Commands/Check.txt
index dc4a8cb41..71fa23739 100644
--- a/hledger/Hledger/Cli/Commands/Check.txt
+++ b/hledger/Hledger/Cli/Commands/Check.txt
@@ -48,7 +48,7 @@ check command:
 -   uniqueleafnames - all account leaf names are unique (similar to the
     old check-dupes command)
 
-Addon checks
+Add-on checks
 
 Some checks are not yet integrated with this command, but are available
 as add-on commands in