diff --git a/src/lsa.cpp b/src/lsa.cpp
index 52a9948..46dc1c4 100644
--- a/src/lsa.cpp
+++ b/src/lsa.cpp
@@ -112,6 +112,12 @@
   return true;
 }
 
+bool
+NameLsa::isEqualContent(const NameLsa& other) const
+{
+  return m_npl == other.getNpl();
+}
+
 void
 NameLsa::writeLog()
 {