diff --git a/hledger/Hledger/Cli/Commands.hs b/hledger/Hledger/Cli/Commands.hs
index 68d10e7d6..b447c2e8e 100644
--- a/hledger/Hledger/Cli/Commands.hs
+++ b/hledger/Hledger/Cli/Commands.hs
@@ -176,6 +176,7 @@ Other/experimental:
  irr                      calculate internal rate of return of an investment
  print-unique             show only transactions with unique descriptions
  register-match           show best matching transaction for a description
+ roi                      calculate return on investments
  test                     run self tests
 OTHER
 Help: