diff --git a/tests/HTMLPurifier/SimpleTest/Reporter.php b/tests/HTMLPurifier/SimpleTest/Reporter.php
index 5ab31f0b..e0e1bdfa 100644
--- a/tests/HTMLPurifier/SimpleTest/Reporter.php
+++ b/tests/HTMLPurifier/SimpleTest/Reporter.php
@@ -22,7 +22,7 @@ class HTMLPurifier_SimpleTest_Reporter extends HTMLReporter
             ?>><?php echo $file ?></option>
         <?php } ?>
     </select>
-    <input type="checkbox" name="standalone" title="Standalone version?" <?php if($this->ac['standalone']) {echo 'checked="checked" ';} ?>/>
+    <input type="checkbox" name="standalone" value="1" title="Standalone version?" <?php if($this->ac['standalone']) {echo 'checked="checked" ';} ?>/>
     <input type="submit" value="Go">
 </form>
 <?php
diff --git a/tests/common.php b/tests/common.php
index 90c0e667..95240974 100644
--- a/tests/common.php
+++ b/tests/common.php
@@ -144,7 +144,7 @@ function htmlpurifier_args(&$AC, $aliases, $o, $v) {
     if (isset($aliases[$o])) $o = $aliases[$o];
     if (!isset($AC[$o])) return;
     if (is_string($AC[$o])) $AC[$o] = $v;
-    if (is_bool($AC[$o]))   $AC[$o] = (bool) $v;
+    if (is_bool($AC[$o]))   $AC[$o] = ($v === '') ? true :(bool) $v;
     if (is_int($AC[$o]))    $AC[$o] = (int) $v;
 }
 
diff --git a/tests/multitest.php b/tests/multitest.php
index f5123ce2..584521a5 100644
--- a/tests/multitest.php
+++ b/tests/multitest.php
@@ -107,7 +107,8 @@ foreach ($versions_to_test as $version) {
 
 // This is the HTML Purifier website's test XML file. We could
 // add more websites, i.e. more configurations to test.
-$test->addTestCase(new RemoteTestCase('http://localhost/htmlpurifier/tests/?xml', 'http://localhost/htmlpurifier/tests/?xml&dry'));
+$test->addTestCase(new RemoteTestCase('http://localhost/htmlpurifier/tests/?xml=1', 'http://localhost/htmlpurifier/tests/?xml=1&dry=1'));
+$test->addTestCase(new RemoteTestCase('http://htmlpurifier.org/dev/tests/?xml=1', 'http://htmlpurifier.org/dev/tests/?xml=1&dry=1'));
 
 if ($AC['xml']) {
     $reporter = new XmlReporter();