diff --git a/src/Composer/Command/ValidateCommand.php b/src/Composer/Command/ValidateCommand.php
index b942a1f40d05..971a9b34f8f7 100644
--- a/src/Composer/Command/ValidateCommand.php
+++ b/src/Composer/Command/ValidateCommand.php
@@ -96,8 +96,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $lockErrors = array();
         $composer = Factory::create($io, $file, $input->hasParameterOption('--no-plugins'));
-        $checkLock = $checkLock && $composer->getConfig()->getBool('lock'); // config.lock = false ~= implicit --no-check-lock
-        $checkLock = $checkLock || $input->getOption('check-lock'); // --check-lock overrides
+        // config.lock = false ~= implicit --no-check-lock; --check-lock overrides
+        $checkLock = ($checkLock && $composer->getConfig()->getBool('lock')) || $input->getOption('check-lock');
         $locker = $composer->getLocker();
         if ($locker->isLocked() && !$locker->isFresh()) {
             $lockErrors[] = '- The lock file is not up to date with the latest changes in composer.json, it is recommended that you run `composer update` or `composer update <package name>`.';