diff --git a/tests/unit/security/verification-helpers.t.cpp b/tests/unit/security/verification-helpers.t.cpp
index e3ecc86..d15f8f2 100644
--- a/tests/unit/security/verification-helpers.t.cpp
+++ b/tests/unit/security/verification-helpers.t.cpp
@@ -51,7 +51,7 @@
 //   auto print = [] (const std::string& name, const uint8_t* buf, size_t size) {
 //     std::cout << "  const Block " + name + "{{\n    ";
 
-//     std::string hex = toHex(buf, size);
+//     std::string hex = toHex({buf, size});
 
 //     for (size_t i = 0; i < hex.size(); i++) {
 //       if (i > 0 && i % 32 == 0)