diff --git a/src/NewCommand.php b/src/NewCommand.php
index 97d03ba9..aa2310fe 100644
--- a/src/NewCommand.php
+++ b/src/NewCommand.php
@@ -40,7 +40,7 @@ protected function configure()
      */
     protected function execute(InputInterface $input, OutputInterface $output)
     {
-        if (! class_exists('ZipArchive')) {
+        if (! extension_loaded('zip')) {
             throw new RuntimeException('The Zip PHP extension is not installed. Please install it and try again.');
         }