diff --git a/src/Behat/MinkExtension/Context/RawMinkContext.php b/src/Behat/MinkExtension/Context/RawMinkContext.php
index eee8e91..6c1324a 100644
--- a/src/Behat/MinkExtension/Context/RawMinkContext.php
+++ b/src/Behat/MinkExtension/Context/RawMinkContext.php
@@ -121,7 +121,7 @@ class RawMinkContext extends BehatContext implements MinkAwareInterface
         // Under Cygwin, uniqid with more_entropy must be set to true. 
         // No effect in other environments.
         $filename = $filename ?: sprintf('%s_%s_%s.%s', $this->getMinkParameter('browser_name'), date('c'), uniqid('', true), 'png');
-        $filepath = $filepath ? $filepath : ini_get('upload_tmp_dir') ? ini_get('upload_tmp_dir') : sys_get_temp_dir();
+        $filepath = $filepath ? $filepath : (ini_get('upload_tmp_dir') ? ini_get('upload_tmp_dir') : sys_get_temp_dir());
         file_put_contents($filepath . '/' . $filename, $this->getSession()->getScreenshot());
     }
 }