diff --git a/src/hello-protocol.hpp b/src/hello-protocol.hpp
index ac0433a..5f1cc7d 100644
--- a/src/hello-protocol.hpp
+++ b/src/hello-protocol.hpp
@@ -70,6 +70,7 @@
 private:
   Nlsr& m_nlsr;
   static const std::string INFO_COMPONENT;
+  static const std::string NLSR_COMPONENT;
 };
 
 } //namespace nlsr