diff --git a/tests/template/includephp_test.php b/tests/template/includephp_test.php
index edf1e40bb8..a3dc9bd5c5 100644
--- a/tests/template/includephp_test.php
+++ b/tests/template/includephp_test.php
@@ -33,11 +33,13 @@ class phpbb_template_includephp_test extends phpbb_template_template_test_case
 
 	public function test_includephp_absolute()
 	{
+		global $phpbb_root_path;
+
 		$path_to_php = str_replace('\\', '/', dirname(__FILE__)) . '/templates/_dummy_include.php.inc';
 		$this->assertTrue(phpbb_is_absolute($path_to_php));
 		$template_text = "Path is absolute.\n<!-- INCLUDEPHP $path_to_php -->";
 
-		$cache_dir = dirname($this->template->cachepath) . '/';
+		$cache_dir = dirname($phpbb_root_path . 'cache') . '/';
 		$fp = fopen($cache_dir . 'includephp_absolute.html', 'w');
 		fputs($fp, $template_text);
 		fclose($fp);
diff --git a/tests/template/template_test.php b/tests/template/template_test.php
index 26cfb3a8e4..1b3dda9b2a 100644
--- a/tests/template/template_test.php
+++ b/tests/template/template_test.php
@@ -371,9 +371,11 @@ class phpbb_template_template_test extends phpbb_template_template_test_case
 
 	public function test_php()
 	{
+		global $phpbb_root_path;
+
 		$template_text = '<!-- PHP -->echo "test";<!-- ENDPHP -->';
 
-		$cache_dir = dirname($this->template->cachepath) . '/';
+		$cache_dir = dirname($phpbb_root_path . 'cache') . '/';
 		$fp = fopen($cache_dir . 'php.html', 'w');
 		fputs($fp, $template_text);
 		fclose($fp);