diff --git a/Doc/Manual/Preprocessor.html b/Doc/Manual/Preprocessor.html
index d5c41dde7..745570ca4 100644
--- a/Doc/Manual/Preprocessor.html
+++ b/Doc/Manual/Preprocessor.html
@@ -115,6 +115,9 @@ SWIGCLISP                       Defined when using CLISP
 SWIGCSHARP                      Defined when using C#
 SWIGGUILE                       Defined when using Guile
 SWIGJAVA                        Defined when using Java
+SWIGJAVASCRIPT                  Defined when using Javascript
+SWIG_JAVASCRIPT_JSC             Defined when using Javascript for JavascriptCore
+SWIG_JAVASCRIPT_V8              Defined when using Javascript for v8 or node.js 
 SWIGLUA                         Defined when using Lua
 SWIGMODULA3                     Defined when using Modula-3
 SWIGMZSCHEME                    Defined when using Mzscheme