diff --git a/emf4cpp.tests/company/test/test.cpp b/emf4cpp.tests/company/test/test.cpp
index 6d14b2a7..94318b8c 100644
--- a/emf4cpp.tests/company/test/test.cpp
+++ b/emf4cpp.tests/company/test/test.cpp
@@ -67,7 +67,11 @@ int main(int argc, char* argv[])
     EObject_ptr eobj = _dser.load ("UMU.xmi");
 
     {
-		boost::intrusive_ptr<Company> umu (::ecore::as< Company >(eobj));
+		Company_ptr umu (::ecore::as< Company >(eobj));
+		const auto& departments = umu->getDepartments();
+		auto manager = departments[0]->getManager();
+		if (!manager)
+			std::cerr << "No reference to manager!" << std::endl;
     }
 }
 
diff --git a/emf4cpp/ecorecpp/parser/handler.cpp b/emf4cpp/ecorecpp/parser/handler.cpp
index f2a08e14..b3371744 100644
--- a/emf4cpp/ecorecpp/parser/handler.cpp
+++ b/emf4cpp/ecorecpp/parser/handler.cpp
@@ -318,7 +318,9 @@ void handler::resolveReferences()
 
             ref_parser::SemanticState ss;
             State< ref_parser::SemanticState > st(ss, s, size);
-            assert(ref_parser::grammar::references::match(st));
+            bool parsingSuccessful = ref_parser::grammar::references::match(st);
+            assert(parsingSuccessful);
+            (void)parsingSuccessful;
 
             ref_parser::references_t& _references = ss.get_references();