diff --git a/nlsr_dm.hpp b/nlsr_dm.hpp
index c174e02..923d2fa 100644
--- a/nlsr_dm.hpp
+++ b/nlsr_dm.hpp
@@ -14,9 +14,8 @@
 class DataManager
 {
 public:
-  void processContent(nlsr& pnlsr, 
-                  const ndn::ptr_lib::shared_ptr<const ndn::Interest> &interest,
-								               const ndn::ptr_lib::shared_ptr<ndn::Data> &data);
+  void processContent(nlsr& pnlsr, const ndn::Interest &interest,
+								               const ndn::Data& data);
 	void processContentInfo(nlsr& pnlsr, string& dataName,
                                                            string& dataContent);
 private: