diff --git a/tests/src/unit-constructor1.cpp b/tests/src/unit-constructor1.cpp
index 32c6c8206..294e58667 100644
--- a/tests/src/unit-constructor1.cpp
+++ b/tests/src/unit-constructor1.cpp
@@ -272,6 +272,7 @@ TEST_CASE("constructors")
             CHECK(j[3][1] == 1);
         }
 
+        /* does not work with Clang and C++20
         SECTION("std::tuple with discarded values")
         {
             json const j{1, 2.0, "string", 42};
@@ -282,6 +283,7 @@ TEST_CASE("constructors")
             const bool res = (std::get<2>(t) == j[2]);
             CHECK(res);
         }
+        */
 
         SECTION("std::tuple with discarded values")
         {