diff --git a/tests/secureserver.pl b/tests/secureserver.pl
index f94b410dec..1b71c36c79 100755
--- a/tests/secureserver.pl
+++ b/tests/secureserver.pl
@@ -218,7 +218,7 @@ foreach my $veropt (('-version', '-V')) {
     }
     last if($ver_major);
 }
-if((!$ver_major) || (!$ver_minor)) {
+if((!$ver_major) || !defined($ver_minor)) {
     if(-x "$stunnel" && ! -d "$stunnel") {
         print "$ssltext Unknown stunnel version\n";
     }