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diff --git a/doc/guix.texi b/doc/guix.texi
index 31deb5b003..da4d2f5ebc 100644
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+++ b/doc/guix.texi
@@ -4643,6 +4643,14 @@ Make sure you understand its security implications before using
@option{--disable-authentication}.
@end quotation
+@item --no-check-certificate
+Do not validate the X.509 certificates of HTTPS servers.
+
+When using this option, you have @emph{absolutely no guarantee} that you
+are communicating with the authentic server responsible for the given
+URL. Unless the channel is authenticated, this makes you vulnerable to
+``man-in-the-middle'' attacks.
+
@item --system=@var{system}
@itemx -s @var{system}
Attempt to build for @var{system}---e.g., @code{i686-linux}---instead of