diff --git a/modules/exploits/windows/ftp/bison_ftp_bof.rb b/modules/exploits/windows/ftp/bison_ftp_bof.rb
index f89b3c6f09..f44d058b7b 100644
--- a/modules/exploits/windows/ftp/bison_ftp_bof.rb
+++ b/modules/exploits/windows/ftp/bison_ftp_bof.rb
@@ -40,7 +40,7 @@ class Metasploit4 < Msf::Exploit::Remote
         },
       'Payload'		 =>
         {
-          'Space'          => 385,
+          'Space'          => 310,
           'BadChars'       => "\x00\x0a\x0d",
           'StackAdjustment' => -3500,
         },