diff --git a/tests/phpunit/includes/bootstrap.php b/tests/phpunit/includes/bootstrap.php
index eebc649efa..47c59528be 100644
--- a/tests/phpunit/includes/bootstrap.php
+++ b/tests/phpunit/includes/bootstrap.php
@@ -36,12 +36,6 @@ if ( ! is_readable( $config_file_path ) ) {
 require_once $config_file_path;
 require_once dirname( __FILE__ ) . '/functions.php';
 
-if ( defined( 'WP_RUN_CORE_TESTS' ) && WP_RUN_CORE_TESTS && file_exists( ABSPATH . '_index.php' ) ) {
-	// Perhaps add more documentation about having to run `grunt` before running tests after changing code.
-	echo "ERROR: ABSPATH must point to the `build` directory, not the `src` directory. Please update your wp-tests-config.php file.\n";
-	exit( 1 );
-}
-
 tests_reset__SERVER();
 
 define( 'WP_TESTS_TABLE_PREFIX', $table_prefix );