diff --git a/docs/UserGuide.md b/docs/UserGuide.md
index bc822a34f80..0421b6635a4 100644
--- a/docs/UserGuide.md
+++ b/docs/UserGuide.md
@@ -327,7 +327,7 @@ After:
 
 **Format:**
 
-`insurance [ai/<insurance to add>]... [di/<insurance to delete>]...`
+`insurance <index> [ai/<insurance to add>]... [di/<insurance to delete>]...`
 
 **Description:**