diff --git a/src/Composer/Repository/Vcs/GitBitbucketDriver.php b/src/Composer/Repository/Vcs/GitBitbucketDriver.php
index 0578a8e85..6a15a4fa7 100644
--- a/src/Composer/Repository/Vcs/GitBitbucketDriver.php
+++ b/src/Composer/Repository/Vcs/GitBitbucketDriver.php
@@ -158,6 +158,6 @@ class GitBitbucketDriver implements VcsDriverInterface
      */
     public static function supports($url, $deep = false)
     {
-        return preg_match('#^https://bitbucket\.org/([^/]+)/(.+?)\.git$#', $url, $match);
+        return preg_match('#^https://bitbucket\.org/([^/]+)/(.+?)\.git$#', $url);
     }
 }