diff --git a/.travis.yml b/.travis.yml
index 1bfdcf3..2fc013b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,7 @@ matrix:
     - php: 5.6
 
 before_script:
+  - sudo apt-get update -qq
   - sudo apt-get install -y -qq libssh2-1-dev libssh2-php
   - pecl install -f ssh2-beta < .noninteractive
   - php -m | grep ssh2
diff --git a/src/Ssh/Sftp.php b/src/Ssh/Sftp.php
index 3cb7624..e0d10b8 100644
--- a/src/Ssh/Sftp.php
+++ b/src/Ssh/Sftp.php
@@ -275,14 +275,14 @@ private function scanDirectory($directory, $recursive)
             }
 
             $filename = sprintf('%s/%s', $directory, $result);
-            $children = $this->scanDirectory($filename, $recursive);
 
-            if (false === $children) {
+            if (false === @scandir($this->getUrl($filename))) {
                 $files[] = $filename;
             } else {
                 $directories[] = $filename;
 
                 if ($recursive) {
+                    $children    = $this->scanDirectory($filename, $recursive);
                     $files       = array_merge($files, $children[0]);
                     $directories = array_merge($directories, $children[1]);
                 }