diff --git a/tests/src/unit-noexcept.cpp b/tests/src/unit-noexcept.cpp
index 6c20f3bf1..656bc2ab8 100644
--- a/tests/src/unit-noexcept.cpp
+++ b/tests/src/unit-noexcept.cpp
@@ -47,8 +47,14 @@ static_assert(!noexcept(std::declval<json>().get<pod_bis>()), "");
 static_assert(noexcept(json(pod{})), "");
 } // namespace
 
-TEST_CASE("runtime checks")
+TEST_CASE("noexcept")
 {
+    // silence -Wunneeded-internal-declaration errors
+    static_cast<void>(static_cast<void(*)(json&, pod)>(&to_json));
+    static_cast<void>(static_cast<void(*)(json&, pod_bis)>(&to_json));
+    static_cast<void>(static_cast<void(*)(const json&, pod)>(&from_json));
+    static_cast<void>(static_cast<void(*)(const json&, pod_bis)>(&from_json));
+
     SECTION("nothrow-copy-constructible exceptions")
     {
         // for ERR60-CPP (https://github.com/nlohmann/json/issues/531):
@@ -63,16 +69,6 @@ TEST_CASE("runtime checks")
         CHECK(std::is_nothrow_copy_constructible<json::out_of_range>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
         CHECK(std::is_nothrow_copy_constructible<json::other_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
     }
-
-    SECTION("silence -Wunneeded-internal-declaration errors")
-    {
-        j = nullptr;
-        json j2;
-        to_json(j2, pod());
-        to_json(j2, pod_bis());
-        from_json(j2, pod());
-        from_json(j2, pod_bis());
-    }
 }
 
 DOCTEST_GCC_SUPPRESS_WARNING_POP