diff --git a/t/spam.t b/t/spam.t
index 958b558..d7d62c4 100644
--- a/t/spam.t
+++ b/t/spam.t
@@ -15,5 +15,8 @@ $t->get_ok('/spam')->status_is(200)
     ->text_is(h2 => 'Messages from the World Wide Web');
 $t->get_ok('/spam/1')->status_is(200)
     ->text_is(h2 => 'Messages from the World Wide Web');
+# Page shouldn't exist (unless Guestbook gets very popular!)
+$t->get_ok('/spam/1337')->status_is(404)
+    ->text_is(h2 => 'Messages from the World Wide Web');
 
 done_testing();
diff --git a/t/view.t b/t/view.t
index 54a9a04..542c963 100644
--- a/t/view.t
+++ b/t/view.t
@@ -15,5 +15,8 @@ $t->get_ok('/view')->status_is(200)
     ->text_is(h2 => 'Messages from the World Wide Web');
 $t->get_ok('/view/1')->status_is(200)
     ->text_is(h2 => 'Messages from the World Wide Web');
+# Page shouldn't exist (unless Guestbook gets very popular!)
+$t->get_ok('/view/1337')->status_is(404)
+    ->text_is(h2 => 'Messages from the World Wide Web');
 
 done_testing();