diff --git a/tests/EndToEnd/SuicidalAutoloaderTest.php b/tests/EndToEnd/SuicidalAutoloaderTest.php
index 3075ee4a0..c295a48f2 100644
--- a/tests/EndToEnd/SuicidalAutoloaderTest.php
+++ b/tests/EndToEnd/SuicidalAutoloaderTest.php
@@ -10,7 +10,7 @@ class SuicidalAutoloaderTest extends TestCase
 
     public function testSucceedsWithEmptyFile(): void
     {
-        if (version_compare(PHP_VERSION, '7.2.0', '<')) {
+        if (\version_compare(\PHP_VERSION, '7.2.0', '<')) {
             $this->markTestSkipped('Test case requires PHP 7.2.');
 
             return;