diff --git a/include/rest_rpc/cplusplus_14.h b/include/rest_rpc/cplusplus_14.h
index 6ae4298..c01a7c7 100644
--- a/include/rest_rpc/cplusplus_14.h
+++ b/include/rest_rpc/cplusplus_14.h
@@ -22,12 +22,12 @@ template <class T, size_t N> struct unique_if<T[N]> {
 
 template <class T, class... Args>
 typename unique_if<T>::single_object make_unique(Args &&...args) {
-  return unique_ptr<T>(new T(forward<Args>(args)...));
+  return std::unique_ptr<T>(new T(forward<Args>(args)...));
 }
 
 template <class T> typename unique_if<T>::unknown_bound make_unique(size_t n) {
   typedef typename std::remove_extent<T>::type U;
-  return unique_ptr<T>(new U[n]());
+  return std::unique_ptr<T>(new U[n]());
 }
 
 template <class T, class... Args>