diff --git tests/phpunit/tests/admin/includesListTable.php tests/phpunit/tests/admin/includesListTable.php
index cf40457..a429a0d 100644
--- tests/phpunit/tests/admin/includesListTable.php
+++ tests/phpunit/tests/admin/includesListTable.php
@@ -192,6 +192,11 @@ class Tests_Admin_includesListTable extends WP_UnitTestCase {
 		foreach ( $expected_ids as $id ) {
 			$this->assertContains( sprintf( 'id="post-%d"', $id ), $output );
 		}
+
+		// Clean up
+		unset( $_REQUEST['paged'] );
+		unset( $GLOBALS['per_page'] );
+
 	}
 
 	/**