diff --git a/test/unittest/documenttest.cpp b/test/unittest/documenttest.cpp
index 2fb5cf2..5809361 100644
--- a/test/unittest/documenttest.cpp
+++ b/test/unittest/documenttest.cpp
@@ -31,7 +31,7 @@ using namespace rapidjson;
 template <typename Allocator, typename StackAllocator>
 void ParseTest() {
     typedef GenericDocument<UTF8<>, Allocator, StackAllocator> DocumentType;
-    typedef DocumentType::ValueType ValueType;
+    typedef typename DocumentType::ValueType ValueType;
     DocumentType doc;
 
     doc.Parse(" { \"hello\" : \"world\", \"t\" : true , \"f\" : false, \"n\": null, \"i\":123, \"pi\": 3.1416, \"a\":[1, 2, 3, 4] } ");