diff --git a/miniserv.pl b/miniserv.pl
index ac52dd7bc..ed38171ba 100755
--- a/miniserv.pl
+++ b/miniserv.pl
@@ -1327,6 +1327,7 @@ $baseauthuser = undef;
 $authpass = undef;
 $session_id = undef;
 $already_session_id = undef;
+$already_authuser = undef;
 $miniserv_internal = undef;
 $querystring = undef;
 $queryargs = undef;