diff --git a/lib/rex/ui/text/output/file.rb b/lib/rex/ui/text/output/file.rb
index c3b9523778..e55f832282 100644
--- a/lib/rex/ui/text/output/file.rb
+++ b/lib/rex/ui/text/output/file.rb
@@ -14,8 +14,8 @@ class Output::File < Rex::Ui::Text::Output
 
   attr_accessor :fd
 
-  def initialize(path)
-    self.fd = ::File.open(path, "wb")
+  def initialize(path, mode='wb')
+    self.fd = ::File.open(path, mode)
   end
 
   def supports_color?