diff --git a/Documentation/cmd-index-activate.txt b/Documentation/cmd-index-activate.txt
index 418e872bcc..85c89c7379 100644
--- a/Documentation/cmd-index-activate.txt
+++ b/Documentation/cmd-index-activate.txt
@@ -31,6 +31,7 @@ This command is intended to be used in scripts.
   Currently supported values:
     * changes
     * accounts
+    * groups
 
 == EXAMPLES
 Activate the latest change index: