diff --git a/Lib/javascript/v8/javascripthelpers.swg b/Lib/javascript/v8/javascripthelpers.swg
index 5de11feb3..9a80a6552 100644
--- a/Lib/javascript/v8/javascripthelpers.swg
+++ b/Lib/javascript/v8/javascripthelpers.swg
@@ -43,4 +43,20 @@ void SWIGV8_AddStaticVariable(v8::Handle<v8::Object> obj, const char* symbol, v8
   obj->SetAccessor(v8::String::NewSymbol(symbol), getter, setter);
 }
 
+void JS_veto_set_variable(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
+{
+    char buffer[256];
+    char msg[512];
+    int res;
+    
+    property->WriteUtf8(buffer, 256);
+    res = sprintf(msg, "Tried to write read-only variable: %s.", buffer);
+    
+    if(res<0) {
+      SWIG_exception(SWIG_ERROR, "Tried to write read-only variable.");
+    } else {
+      SWIG_exception(SWIG_ERROR, msg);
+    }
+}
+
 %} // v8_helper_functions
diff --git a/Source/Modules/javascript.cxx b/Source/Modules/javascript.cxx
index 5f3e01a42..28c4b96b7 100644
--- a/Source/Modules/javascript.cxx
+++ b/Source/Modules/javascript.cxx
@@ -1591,12 +1591,15 @@ private:
       
   String* GLOBAL;
   String* NULL_STR;
+  String *VETO_SET;
+
 };
 
 V8Emitter::V8Emitter() 
 : JSEmitter(), 
   GLOBAL(NewString("global")),
-  NULL_STR(NewString("0"))
+  NULL_STR(NewString("0")),
+  VETO_SET(NewString("JS_veto_set_variable"))
 {
 }
 
@@ -1604,6 +1607,7 @@ V8Emitter::~V8Emitter()
 {
   Delete(GLOBAL);
   Delete(NULL_STR);
+  Delete(VETO_SET);
 }
 
 int V8Emitter::initialize(Node *n)
@@ -1761,7 +1765,7 @@ int V8Emitter::enterVariable(Node* n)
   JSEmitter::enterVariable(n);
   
   state.variable(GETTER, NULL_STR);
-  state.variable(SETTER, NULL_STR);
+  state.variable(SETTER, VETO_SET);
 
   return SWIG_OK;
 }