diff --git a/tests/fixtures/SuicidalAutoloader/autoloader.php b/tests/fixtures/SuicidalAutoloader/autoloader.php
index d506219c1..ac6e8d54a 100644
--- a/tests/fixtures/SuicidalAutoloader/autoloader.php
+++ b/tests/fixtures/SuicidalAutoloader/autoloader.php
@@ -10,6 +10,7 @@ spl_autoload_register(static function (string $className) {
         Transliterator::class, // symfony/string
         InstalledVersions::class, // composer v2
         'Mockery\Closure', // Mockery/mockery 1.6.1
+        'Mockery\Matcher\TExpected', // Mockery/mockery 1.6.10, possibly before
         'parent', // it's unclear why Psalm tries to autoload parent
         'PHPUnit\Framework\ArrayAccess',
         'PHPUnit\Framework\Countable',