diff --git a/tests/extensions.cpp b/tests/extensions.cpp
index 4fc01f7..12c45d4 100644
--- a/tests/extensions.cpp
+++ b/tests/extensions.cpp
@@ -317,7 +317,8 @@ TEST_CASE("Monadic operations", "[monadic]") {
     void non_const() {}
   };
 
-#if defined(TL_EXPECTED_CXX14) && !defined(TL_EXPECTED_GCC49) && !defined(TL_EXPECTED_GCC54)
+#if defined(TL_OPTIONAL_CXX14) && !defined(TL_OPTIONAL_GCC49) &&               \
+    !defined(TL_OPTIONAL_GCC54)
   SECTION("Issue #1") {
     tl::optional<foo> f = foo{};
     auto l = [](auto &&x) { x.non_const(); };