diff --git a/Koha/App/Plugin/CSRF.pm b/Koha/App/Plugin/CSRF.pm
index 01ecb3897d..5e487fb097 100644
--- a/Koha/App/Plugin/CSRF.pm
+++ b/Koha/App/Plugin/CSRF.pm
@@ -62,6 +62,8 @@ this case, no verification is done.
 
 =cut
 
+# If you need to update the logic here, please also update Koha::Middleware::CSRF
+
 sub register {
     my ( $self, $app, $conf ) = @_;
 
diff --git a/Koha/Middleware/CSRF.pm b/Koha/Middleware/CSRF.pm
index 29b1e1ae25..58e75c948e 100644
--- a/Koha/Middleware/CSRF.pm
+++ b/Koha/Middleware/CSRF.pm
@@ -20,6 +20,8 @@ use Modern::Perl;
 use parent qw(Plack::Middleware);
 use Plack::Response;
 
+# If you need to update the logic here, please also update Koha::App::Plugin::CSRF
+
 sub call {
     my ( $self, $env ) = @_;
     my $req = Plack::Request->new($env);