diff --git a/src/security/nlsr_cse.cpp b/src/security/nlsr_cse.cpp
index f2f5f06..91c0150 100644
--- a/src/security/nlsr_cse.cpp
+++ b/src/security/nlsr_cse.cpp
@@ -1,6 +1,8 @@
 #include <ndn-cpp-dev/security/signature-sha256-with-rsa.hpp>
 #include "nlsr_cse.hpp"
 
+#define THIS_FILE "nlsr_cse.cpp"
+
 namespace nlsr
 {
   std::ostream&