diff --git a/doc/MANUAL.md b/doc/MANUAL.md
index 4e294ed..a115d49 100644
--- a/doc/MANUAL.md
+++ b/doc/MANUAL.md
@@ -51,6 +51,7 @@ This is the manual for version %%VERSION%%.
 1. [Script execution](#script_execution)
     - [Validation](#script_validation)
     - [Field Values](#script_fieldvalues)
+    - [Environment](#script_env)
     - [Execution security policy](#script_runas)
 1. [Users](#users)
     - [Passwords](#users_passwords)