diff --git a/src/Psalm/Internal/Fork/PsalmRestarter.php b/src/Psalm/Internal/Fork/PsalmRestarter.php
index a8bbc50761c..7849d888707 100644
--- a/src/Psalm/Internal/Fork/PsalmRestarter.php
+++ b/src/Psalm/Internal/Fork/PsalmRestarter.php
@@ -140,7 +140,7 @@ private static function toBytes(string $value): int
     /**
      * No type hint to allow xdebug-handler v1 and v2 usage
      *
-     * @param string[] $command
+     * @param non-empty-list<string> $command
      * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
      */
     protected function restart($command): void
@@ -178,6 +178,7 @@ protected function restart($command): void
             0,
             $additional_options,
         );
+        assert(count($command) > 0);
 
         parent::restart($command);
     }
diff --git a/tests/fixtures/SuicidalAutoloader/autoloader.php b/tests/fixtures/SuicidalAutoloader/autoloader.php
index d506219c141..33ce6e511f2 100644
--- a/tests/fixtures/SuicidalAutoloader/autoloader.php
+++ b/tests/fixtures/SuicidalAutoloader/autoloader.php
@@ -10,6 +10,7 @@
         Transliterator::class, // symfony/string
         InstalledVersions::class, // composer v2
         'Mockery\Closure', // Mockery/mockery 1.6.1
+        'Mockery\Matcher\TExpected', // Mockery/mockery, invalid template usage
         'parent', // it's unclear why Psalm tries to autoload parent
         'PHPUnit\Framework\ArrayAccess',
         'PHPUnit\Framework\Countable',