diff --git a/tests/XtoolsWebTestCase.test b/tests/XtoolsWebTestCase.test
index 7cc58b7..f40184b 100644
--- a/tests/XtoolsWebTestCase.test
+++ b/tests/XtoolsWebTestCase.test
@@ -5,6 +5,11 @@
  */
 class XtoolsWebTestCase extends DrupalWebTestCase {
 
+  function setUp(array $modules = array()) {
+    $this->profile = 'testing';
+    parent::setUp($modules);
+  }
+
   protected function drupalCreateUser(array $permissions = array(), $uid = 0) {
     // Create a role with the given permission set, if any.
     $rid = FALSE;
diff --git a/tests/xtools_test/tests/XtoolsCallablesWebTestCase.test b/tests/xtools_test/tests/XtoolsCallablesWebTestCase.test
index a5c4024..e53bcbb 100644
--- a/tests/xtools_test/tests/XtoolsCallablesWebTestCase.test
+++ b/tests/xtools_test/tests/XtoolsCallablesWebTestCase.test
@@ -10,8 +10,8 @@ class XtoolsCallablesWebTestCase extends XtoolsWebTestCase {
     );
   }
 
-  function setUp() {
-    parent::setUp(array('xtools'));
+  function setUp(array $modules = array()) {
+    parent::setUp($modules + array('xtools'));
   }
 
   function testCoreHookReturnValue() {
diff --git a/tests/xtools_test/tests/XtoolsSignatureWebTestCase.test b/tests/xtools_test/tests/XtoolsSignatureWebTestCase.test
index b57f851..2a1543b 100644
--- a/tests/xtools_test/tests/XtoolsSignatureWebTestCase.test
+++ b/tests/xtools_test/tests/XtoolsSignatureWebTestCase.test
@@ -9,8 +9,8 @@ class XtoolsSignatureWebTestCase extends DrupalWebTestCase {
     );
   }
 
-  function setUp() {
-    parent::setUp(array('xtools', 'xtools_test'));
+  function setUp(array $modules = array()) {
+    parent::setUp($modules + array('xtools', 'xtools_test'));
   }
 
   function testSignatureValidation() {