diff --git a/src/lsa/coordinate-lsa.cpp b/src/lsa/coordinate-lsa.cpp
index be42d9e..11428f8 100644
--- a/src/lsa/coordinate-lsa.cpp
+++ b/src/lsa/coordinate-lsa.cpp
@@ -119,18 +119,14 @@
   m_hyperbolicAngles = angles;
 }
 
-std::string
-CoordinateLsa::toString() const
+void
+CoordinateLsa::print(std::ostream& os) const
 {
-  std::ostringstream os;
-  os << getString();
   os << "      Hyperbolic Radius  : " << m_hyperbolicRadius << "\n";
   int i = 0;
   for (const auto& value : m_hyperbolicAngles) {
     os << "      Hyperbolic Theta " << i++ << " : " << value << "\n";
   }
-
-  return os.str();
 }
 
 std::tuple<bool, std::list<ndn::Name>, std::list<ndn::Name>>
@@ -148,10 +144,4 @@
   return {false, std::list<ndn::Name>{}, std::list<ndn::Name>{}};
 }
 
-std::ostream&
-operator<<(std::ostream& os, const CoordinateLsa& lsa)
-{
-  return os << lsa.toString();
-}
-
 } // namespace nlsr