diff --git a/How-to-write-a-browser-exploit-using-BrowserExploitServer.md b/How-to-write-a-browser-exploit-using-BrowserExploitServer.md
index bd60cbd590..e631074a8b 100644
--- a/How-to-write-a-browser-exploit-using-BrowserExploitServer.md
+++ b/How-to-write-a-browser-exploit-using-BrowserExploitServer.md
@@ -37,8 +37,8 @@ You can also define target-specific requirements. This is also how the mixin is
     [
       'Windows XP with IE 8',
       {
-        'os_flavor' => 'XP',
-        'ua_name'   => 'MSIE',
+        'os_flavor' => WindowsVersions::XP,
+        'ua_name'   => HttpClients::IE,
         'ua_ver'    => '8.0',
         'Rop'       => true,
         'Offset'    => 0x100
@@ -47,8 +47,8 @@ You can also define target-specific requirements. This is also how the mixin is
     [
       'Windows 7 with IE 9',
       {
-        'os_flavor' => '7',
-        'ua_name'   => 'MSIE',
+        'os_flavor' => WindowsVersions::SEVEN,
+        'ua_name'   => HttpClients::IE,
         'ua_ver'    => '9.0',
         'Rop'       => true,
         'Offset'    => 0x200
@@ -74,6 +74,7 @@ The exact values available for :os_flavor:
 * WindowsVersions::VISTA = "Vista"
 * WindowsVersions::TWOK8 = "2008"
 * WindowsVersions::SEVEN = "7"
+* WindowsVersions::EIGHT = "8"
 
 The exact values for :ua_name:
 * HttpClients::IE = "MSIE"