diff --git a/doc/man-sections/tls-options.rst b/doc/man-sections/tls-options.rst
index 4c45b10..aa8858c 100644
--- a/doc/man-sections/tls-options.rst
+++ b/doc/man-sections/tls-options.rst
@@ -538,7 +538,8 @@
   stack (including the notoriously dangerous X.509 and ASN.1 stacks) to
   the connecting client.
 
-  OpenVPN supplies the following environment variables to the command:
+  OpenVPN supplies the following environment variables to the command (and
+  only these variables. The normal environment variables are NOT present):
 
   * :code:`script_type` is set to :code:`tls-crypt-v2-verify`