diff --git a/tests/t20009/t20009.cc b/tests/t20009/t20009.cc
index ce9ae973..50d9fa3f 100644
--- a/tests/t20009/t20009.cc
+++ b/tests/t20009/t20009.cc
@@ -13,13 +13,17 @@ template <typename T> struct B {
     std::unique_ptr<A<T>> a;
 };
 
+using BFloatPtr = std::shared_ptr<B<float>>;
+
 void tmain()
 {
     std::shared_ptr<B<std::string>> bstring;
     auto bint = std::make_unique<B<int>>();
+    BFloatPtr bfloat;
 
     bstring->b("b");
     bint.get()->b(42);
+    bfloat->b(1.0);
 }
 }
 }
\ No newline at end of file
diff --git a/tests/t20009/test_case.h b/tests/t20009/test_case.h
index 9c29d06e..359e625a 100644
--- a/tests/t20009/test_case.h
+++ b/tests/t20009/test_case.h
@@ -42,6 +42,8 @@ TEST_CASE("t20009", "[test-case][sequence]")
     REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B<int>"), "b"));
     REQUIRE_THAT(puml, HasCall(_A("B<int>"), _A("A<int>"), "a"));
 
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B<float>"), "b"));
+    REQUIRE_THAT(puml, HasCall(_A("B<float>"), _A("A<float>"), "a"));
     save_puml(
         "./" + config.output_directory() + "/" + diagram->name + ".puml", puml);
 }
\ No newline at end of file