diff --git a/base/Siege.php b/base/Siege.php
index 3859af1..84fa533 100644
--- a/base/Siege.php
+++ b/base/Siege.php
@@ -28,14 +28,14 @@ public function __construct(
           escapeshellarg($options->siege).' --version 2>&1 | head -n 1',
         ),
       );
-      $bad_prefix = 'SIEGE 3';
+      $bad_prefix = 'SIEGE 3.0';
       if (substr($version_line, 0, strlen($bad_prefix)) === $bad_prefix) {
         fprintf(
           STDERR,
           "WARNING: Siege 3.0.0-3.0.7 sends an incorrect HOST header to ports ".
           "other than :80 and :443. Siege 3.0.8 and 3.0.9 sometimes sends full ".
           "URLs as paths. You are using '%s'.\n\n".
-          "You can specify a path to siege 2.7x  with the ".
+          "You can specify a path to siege 2.7x or > 3.1 with the ".
           "--siege=/path/to/siege option. If you have patched siege to fix ".
           "these issues, pass --skip-version-checks.\n",
           $version_line,