diff --git a/composer.json b/composer.json
index 6bb5f4b..b3c2e62 100644
--- a/composer.json
+++ b/composer.json
@@ -42,8 +42,7 @@
             "Revolt\\": "src"
         },
         "files": [
-            "src/functions.php",
-            "src/EventLoop/Internal/functions.php"
+            "src/functions.php"
         ]
     },
     "autoload-dev": {
diff --git a/src/EventLoop/Internal/functions.php b/src/EventLoop/Internal/functions.php
deleted file mode 100644
index 33f358c..0000000
--- a/src/EventLoop/Internal/functions.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-
-namespace Revolt\EventLoop\Internal;
-
-use Revolt\EventLoop;
-
-/**
- * Wrapper function used by {@see \Revolt\launch()} to create a fiber.
- *
- * @param callable $callback
- *
- * @internal
- */
-function run(callable $callback): void
-{
-    try {
-        $callback();
-    } catch (\Throwable $exception) {
-        EventLoop::queue(static fn () => throw $exception);
-    }
-}
diff --git a/test/EventLoopTest.php b/test/EventLoopTest.php
index 71c4f18..1a353fd 100644
--- a/test/EventLoopTest.php
+++ b/test/EventLoopTest.php
@@ -4,7 +4,6 @@
 
 use PHPUnit\Framework\TestCase;
 use Revolt\EventLoop;
-use function Revolt\launch;
 
 class EventLoopTest extends TestCase
 {
@@ -106,7 +105,7 @@ public function testFiberReuse(): void
 
     public function testRunInFiber(): void
     {
-        launch(fn () => EventLoop::run());
+        EventLoop::queue(fn () => EventLoop::run());
 
         $this->expectException(\Error::class);
         $this->expectExceptionMessage("within a fiber");
@@ -154,7 +153,7 @@ public function testSuspensionWithinFiber(): void
     {
         $invoked = false;
 
-        launch(function () use (&$invoked): void {
+        EventLoop::queue(function () use (&$invoked): void {
             $suspension = EventLoop::createSuspension();
 
             EventLoop::defer(fn () => $suspension->resume('test'));