diff --git a/tests/unit_tests/address_from_url.cpp b/tests/unit_tests/address_from_url.cpp
index 3630b59d3..498fb4358 100644
--- a/tests/unit_tests/address_from_url.cpp
+++ b/tests/unit_tests/address_from_url.cpp
@@ -109,7 +109,7 @@ TEST(AddressFromURL, Failure)
   bool dnssec_result = false;
 
   std::vector<std::string> addresses = tools::dns_utils::addresses_from_url("example.invalid", dnssec_result);
-
+  LOG_PRINT_L0("This test could fail in case of running inside LAN with local DNS server");
   // for a non-existing domain such as "example.invalid", the non-existence is proved with NSEC records
   ASSERT_TRUE(dnssec_result);