diff --git a/lib/include/phosphor-logging/lg2/conversion.hpp b/lib/include/phosphor-logging/lg2/conversion.hpp
index 3a81d8d..1ab7f09 100644
--- a/lib/include/phosphor-logging/lg2/conversion.hpp
+++ b/lib/include/phosphor-logging/lg2/conversion.hpp
@@ -364,7 +364,7 @@
     template <typename... Ts>
     static void step(std::tuple<Ts...>&&, header_str)
     {
-        static_assert(!std::is_same_v<header_str, header_str>,
+        static_assert(std::is_same_v<std::tuple<Ts...>, header_str>,
                       "Found header field without expected data.");
     }