diff --git a/docs/libcurl/libcurl-env.md b/docs/libcurl/libcurl-env.md
index 03a6628b6b..3b9a83861f 100644
--- a/docs/libcurl/libcurl-env.md
+++ b/docs/libcurl/libcurl-env.md
@@ -66,21 +66,12 @@ When the netrc feature is used (CURLOPT_NETRC(3)), this variable is
 checked as the secondary way to find the "current" home directory (on Windows
 only) in which the .netrc file is likely to exist.
 
-## `LOGNAME`
-
-Username to use when invoking the *ntlm-wb* tool, if *NTLMUSER* was
-not set.
-
 ## `NO_PROXY`
 
 This has the same functionality as the CURLOPT_NOPROXY(3) option: it
 gives libcurl a comma-separated list of hostname patterns for which libcurl
 should not use a proxy.
 
-## `NTLMUSER`
-
-Username to use when invoking the *ntlm-wb* tool.
-
 ## `SSLKEYLOGFILE`
 
 When set and libcurl runs with an SSL backend that supports this feature,
@@ -91,11 +82,6 @@ analyze/view the traffic.
 These secrets and this file might be sensitive. Users are advised to take
 precautions so that they are not stolen or otherwise inadvertently revealed.
 
-## `USER`
-
-Username to use when invoking the *ntlm-wb* tool, if *NTLMUSER* and *LOGNAME*
-were not set.
-
 # Debug Variables
 
 Debug variables are intended for internal use and are documented in