diff --git a/ndn-cpp/util/dynamic-uchar-vector.hpp b/ndn-cpp/util/dynamic-uchar-vector.hpp
index b24229b..07294fc 100644
--- a/ndn-cpp/util/dynamic-uchar-vector.hpp
+++ b/ndn-cpp/util/dynamic-uchar-vector.hpp
@@ -28,7 +28,7 @@
    * Get the shared_ptr to the allocated vector.
    * @return The shared_ptr to the allocated vector. 
    */
-  const ptr_lib::shared_ptr<std::vector<unsigned char> > &get() { return vector_; }
+  const ptr_lib::shared_ptr<std::vector<unsigned char> >& get() { return vector_; }
   
 private:
   /**