diff --git a/tools/ndnsec-dump-certificate.cpp b/tools/ndnsec-dump-certificate.cpp
index d3936ec..bb322d0 100644
--- a/tools/ndnsec-dump-certificate.cpp
+++ b/tools/ndnsec-dump-certificate.cpp
@@ -131,7 +131,7 @@
     }
 
   KeyChain keyChain;
-  ptr_lib::shared_ptr<IdentityCertificate> certificate;
+  shared_ptr<IdentityCertificate> certificate;
 
   try{
     if(isIdentityName || isKeyName || isCertName)