diff --git a/test/fail_mismatch_type_in_returns_int_action.cpp b/test/fail_mismatch_type_in_returns_int_action.cpp
index 03f952d..ebc3df7 100644
--- a/test/fail_mismatch_type_in_returns_int_action.cpp
+++ b/test/fail_mismatch_type_in_returns_int_action.cpp
@@ -17,6 +17,6 @@ namespace
     void test_case()
     {
         my_class c;
-        MOCK_EXPECT( c.my_method ).returns( "42" );
+        MOCK_EXPECT( c.my_method ).returns( std::string() );
     }
 }