diff --git a/src/beman/optional26/tests/optional.t.cpp b/src/beman/optional26/tests/optional.t.cpp
index 0191509..93a9337 100644
--- a/src/beman/optional26/tests/optional.t.cpp
+++ b/src/beman/optional26/tests/optional.t.cpp
@@ -900,11 +900,7 @@ TEST(OptionalTest, HashTest) {
 }
 
 TEST(OptionalTest, CanHoldValueOfImmovableType) {
-    struct immovable {
-        explicit immovable()                   = default;
-        immovable(const immovable&)            = delete;
-        immovable& operator=(const immovable&) = delete;
-    };
+    using beman::optional26::tests::immovable;
 
     beman::optional26::optional<immovable> o1(beman::optional26::in_place);
     EXPECT_TRUE(o1);
diff --git a/src/beman/optional26/tests/test_types.hpp b/src/beman/optional26/tests/test_types.hpp
index 3a566df..6e3e919 100644
--- a/src/beman/optional26/tests/test_types.hpp
+++ b/src/beman/optional26/tests/test_types.hpp
@@ -65,6 +65,12 @@ class Point {
     bool operator==(const Point&) const  = default;
 };
 
+struct immovable {
+    explicit immovable()                   = default;
+    immovable(const immovable&)            = delete;
+    immovable& operator=(const immovable&) = delete;
+};
+
 } // namespace beman::optional26::tests
 
 #endif // BEMAN_OPTIONAL26_TESTS_TEST_TYPES_HPP