diff --git a/src/node.cc b/src/node.cc
index 1767d255b2..0e798b1353 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -120,7 +120,7 @@ using v8::TryCatch;
 using v8::Uint32;
 using v8::V8;
 using v8::Value;
-using v8::kExternalUnsignedIntArray;
+using v8::kExternalUint32Array;
 
 // FIXME(bnoordhuis) Make these per-context?
 QUEUE handle_wrap_queue = { &handle_wrap_queue, &handle_wrap_queue };
@@ -928,7 +928,7 @@ void SetupAsyncListener(const FunctionCallbackInfo<Value>& args) {
   Environment::AsyncListener* async_listener = env->async_listener();
   async_listener_flag_obj->SetIndexedPropertiesToExternalArrayData(
       async_listener->fields(),
-      kExternalUnsignedIntArray,
+      kExternalUint32Array,
       async_listener->fields_count());
 
   // Do a little housekeeping.
@@ -968,7 +968,7 @@ void SetupDomainUse(const FunctionCallbackInfo<Value>& args) {
   Environment::DomainFlag* domain_flag = env->domain_flag();
   domain_flag_obj->SetIndexedPropertiesToExternalArrayData(
       domain_flag->fields(),
-      kExternalUnsignedIntArray,
+      kExternalUint32Array,
       domain_flag->fields_count());
 
   // Do a little housekeeping.
@@ -993,7 +993,7 @@ void SetupNextTick(const FunctionCallbackInfo<Value>& args) {
   Local<Object> tick_info_obj = args[0].As<Object>();
   tick_info_obj->SetIndexedPropertiesToExternalArrayData(
       env->tick_info()->fields(),
-      kExternalUnsignedIntArray,
+      kExternalUint32Array,
       env->tick_info()->fields_count());
 
   env->set_tick_callback_function(args[1].As<Function>());
diff --git a/src/node_buffer.cc b/src/node_buffer.cc
index 3f8de59b4f..822c4f868d 100644
--- a/src/node_buffer.cc
+++ b/src/node_buffer.cc
@@ -87,7 +87,7 @@ bool HasInstance(Handle<Object> obj) {
   if (!obj->HasIndexedPropertiesInExternalArrayData())
     return false;
   v8::ExternalArrayType type = obj->GetIndexedPropertiesExternalArrayDataType();
-  return type == v8::kExternalUnsignedByteArray;
+  return type == v8::kExternalUint8Array;
 }
 
 
diff --git a/src/smalloc.cc b/src/smalloc.cc
index d271479e41..41298030ce 100644
--- a/src/smalloc.cc
+++ b/src/smalloc.cc
@@ -51,7 +51,7 @@ using v8::RetainedObjectInfo;
 using v8::Uint32;
 using v8::Value;
 using v8::WeakCallbackData;
-using v8::kExternalUnsignedByteArray;
+using v8::kExternalUint8Array;
 
 
 class CallbackInfo {
@@ -304,7 +304,7 @@ void Alloc(const FunctionCallbackInfo<Value>& args) {
 
   // it's faster to not pass the default argument then use Uint32Value
   if (args[2]->IsUndefined()) {
-    array_type = kExternalUnsignedByteArray;
+    array_type = kExternalUint8Array;
   } else {
     array_type = static_cast<ExternalArrayType>(args[2]->Uint32Value());
     size_t type_length = ExternalArraySize(array_type);
@@ -385,7 +385,7 @@ void AllocDispose(Environment* env, Handle<Object> obj) {
 
   if (data != NULL) {
     obj->SetIndexedPropertiesToExternalArrayData(NULL,
-                                                 kExternalUnsignedByteArray,
+                                                 kExternalUint8Array,
                                                  0);
     free(data);
   }