diff --git a/tests/mocks/lsa.cpp b/tests/mocks/lsa.cpp
index 3ab6689..d9548a0 100644
--- a/tests/mocks/lsa.cpp
+++ b/tests/mocks/lsa.cpp
@@ -47,5 +47,10 @@
   return true;
 }
 
+void
+MockLsa::writeLog() const
+{
+}
+
 } // namespace test
 } // namespace nlsr