diff --git a/tests/SupressFramework.php b/tests/_/SupressFramework.php
similarity index 100%
rename from tests/SupressFramework.php
rename to tests/_/SupressFramework.php
diff --git a/tests/SupressFrameworkError.php b/tests/_/SupressFrameworkError.php
similarity index 100%
rename from tests/SupressFrameworkError.php
rename to tests/_/SupressFrameworkError.php
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 9367a97..463a9ee 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -5,8 +5,8 @@
 // As WordPress is still using and supporting PHPUnit 6, we need to create
 // certain empty classes expected for that version of PHPUnit in order to
 // supress errors when we run PHPUnit 9.
-require './tests/SupressFrameworkError.php';
-require './tests/SupressFramework.php';
+require dirname( __FILE__ ) . '/_/SupressFrameworkError.php';
+require dirname( __FILE__ ) . '/_/SupressFramework.php';
 
 // Include the WordPress test suite
 //