diff --git a/builders/builder.py b/builders/builder.py
index 3fddda6..9dd79d5 100644
--- a/builders/builder.py
+++ b/builders/builder.py
@@ -264,7 +264,8 @@ class Builder(object):
         if os.path.exists(self.work_path):
             rmtree(self.work_path)
         self._print('Exporting the release version...')
-        self._git('checkout-index', self.branch_path, ['-f', '-a', '--prefix={folder}'.format(folder=self.work_path)],
+        # Note that it is very important that the prefix ends with a slash to get the files into the folder
+        self._git('checkout-index', self.branch_path, ['-f', '-a', '--prefix={folder}/'.format(folder=self.work_path)],
                   'Error exporting the code')
 
     def get_extra_parameters(self):