diff --git a/base/string_utils.hpp b/base/string_utils.hpp
index fd6b26551b..c58228110a 100644
--- a/base/string_utils.hpp
+++ b/base/string_utils.hpp
@@ -13,7 +13,17 @@ namespace strings
 {
 
 typedef uint32_t UniChar;
-typedef buffer_vector<UniChar, 32> UniString;
+//typedef buffer_vector<UniChar, 32> UniString;
+
+/// Make new type, not typedef. Need to specialize DebugPrint.
+class UniString : public buffer_vector<UniChar, 32>
+{
+  typedef buffer_vector<UniChar, 32> BaseT;
+public:
+  UniString() {}
+  explicit UniString(size_t n, UniChar c = UniChar()) : BaseT(n, c) {}
+  template <class IterT> UniString(IterT b, IterT e) : BaseT(b, e) {}
+};
 
 UniString MakeLowerCase(UniString const & s);
 void MakeLowerCase(UniString & s);
@@ -38,6 +48,11 @@ inline string ToUtf8(UniString const & s)
   return result;
 }
 
+inline string DebugPrint(UniString const & s)
+{
+  return ToUtf8(s);
+}
+
 template <typename DelimFuncT, typename UniCharIterT = UniString::const_iterator>
 class TokenizeIterator
 {