diff --git a/Lib/javascript/v8/javascriptrun.swg b/Lib/javascript/v8/javascriptrun.swg
index c6e31ff9d..e7fa69e38 100644
--- a/Lib/javascript/v8/javascriptrun.swg
+++ b/Lib/javascript/v8/javascriptrun.swg
@@ -310,7 +310,7 @@ SWIGRUNTIME int SWIG_V8_GetInstancePtr(SWIGV8_VALUE valRef, void **ptr) {
   if(!valRef->IsObject()) {
     return SWIG_TypeError;
   }
-  SWIGV8_OBJECT objRef = SWIGV8_TO_OBJECT(valRef);
+  SWIGV8_OBJECT objRef = SWIGV8_OBJECT::Cast(valRef);
 
   if(objRef->InternalFieldCount() < 1) return SWIG_ERROR;
 
@@ -405,7 +405,7 @@ SWIGRUNTIME int SWIG_V8_ConvertPtr(SWIGV8_VALUE valRef, void **ptr, swig_type_in
   if(!valRef->IsObject()) {
     return SWIG_TypeError;
   }
-  SWIGV8_OBJECT objRef = SWIGV8_TO_OBJECT(valRef);
+  SWIGV8_OBJECT objRef = SWIGV8_OBJECT::Cast(valRef);
   return SWIG_V8_ConvertInstancePtr(objRef, ptr, info, flags);
 }
 
diff --git a/Lib/javascript/v8/javascriptstrings.swg b/Lib/javascript/v8/javascriptstrings.swg
index 9c0919172..42d0b86b5 100644
--- a/Lib/javascript/v8/javascriptstrings.swg
+++ b/Lib/javascript/v8/javascriptstrings.swg
@@ -8,9 +8,9 @@ SWIG_AsCharPtrAndSize(SWIGV8_VALUE valRef, char** cptr, size_t* psize, int *allo
 {
   if(valRef->IsString()) {
 %#if (V8_MAJOR_VERSION-0) < 4 && (SWIG_V8_VERSION < 0x031903)
-    v8::Handle<v8::String> js_str = SWIGV8_TO_STRING(valRef);
+    v8::Handle<v8::String> js_str = v8::Handle<v8::String>::Cast(valRef);
 %#else
-    v8::Local<v8::String> js_str = SWIGV8_TO_STRING(valRef);
+    v8::Local<v8::String> js_str = v8::Local<v8::String>::Cast(valRef);
 %#endif
 
     size_t len = SWIGV8_UTF8_LENGTH(js_str) + 1;
@@ -24,7 +24,7 @@ SWIG_AsCharPtrAndSize(SWIGV8_VALUE valRef, char** cptr, size_t* psize, int *allo
     return SWIG_OK;
   } else {
     if(valRef->IsObject()) {
-      SWIGV8_OBJECT obj = SWIGV8_TO_OBJECT(valRef);
+      SWIGV8_OBJECT obj = SWIGV8_OBJECT::Cast(valRef);
       // try if the object is a wrapped char[]
       swig_type_info* pchar_descriptor = SWIG_pchar_descriptor();
       if (pchar_descriptor) {