diff --git a/test/unique_ptr_test.cpp b/test/unique_ptr_test.cpp
index 1aa4578..1735868 100644
--- a/test/unique_ptr_test.cpp
+++ b/test/unique_ptr_test.cpp
@@ -187,7 +187,7 @@ void run(ClassLoader * loader)
 {
   std::vector<std::string> classes = loader->getAvailableClasses<Base>();
   for (auto & class_ : classes) {
-    loader->createUniqueInstance<Base>(class_)->saySomething();
+    (void)loader->createUniqueInstance<Base>(class_);
   }
 }
 
diff --git a/test/utest.cpp b/test/utest.cpp
index f4e13ee..cdab03c 100644
--- a/test/utest.cpp
+++ b/test/utest.cpp
@@ -272,7 +272,7 @@ void run(class_loader::ClassLoader * loader)
 {
   std::vector<std::string> classes = loader->getAvailableClasses<Base>();
   for (auto & class_ : classes) {
-    loader->createInstance<Base>(class_)->saySomething();
+    (void)loader->createInstance<Base>(class_);
   }
 }