diff --git a/tests/functional/extension_acp_test.php b/tests/functional/extension_acp_test.php
index b36f2c6aac..8614c0c963 100644
--- a/tests/functional/extension_acp_test.php
+++ b/tests/functional/extension_acp_test.php
@@ -15,7 +15,7 @@ class phpbb_functional_extension_acp_test extends phpbb_functional_test_case
 	static private $helper;
 
 	static protected $fixtures = array(
-		'',
+		'./',
 	);
 
 	static public function setUpBeforeClass()
diff --git a/tests/functional/extension_module_test.php b/tests/functional/extension_module_test.php
index 12113bedac..c573ea5410 100644
--- a/tests/functional/extension_module_test.php
+++ b/tests/functional/extension_module_test.php
@@ -20,7 +20,7 @@ class phpbb_functional_extension_module_test extends phpbb_functional_test_case
 	static private $helper;
 
 	static protected $fixtures = array(
-		'',
+		'./',
 	);
 
 	static public function setUpBeforeClass()