diff --git a/src/functions_include.php b/src/functions_include.php
index c0d998a..acba41d 100644
--- a/src/functions_include.php
+++ b/src/functions_include.php
@@ -3,7 +3,7 @@
 namespace WyriHaximus\React;
 
 // @codeCoverageIgnoreStart
-if (!function_exists('WyriHaximus\toChildProcessOrNotToChildProcess')) {
+if (!function_exists('WyriHaximus\toCoroutineOrNotToCoroutine')) {
     require __DIR__ . '/functions.php';
 }
 // @codeCoverageIgnoreEnd