diff --git a/SimulationRuntime/cpp/Include/Core/Modelica.h b/SimulationRuntime/cpp/Include/Core/Modelica.h
index f1419190bb3..90b333bb247 100644
--- a/SimulationRuntime/cpp/Include/Core/Modelica.h
+++ b/SimulationRuntime/cpp/Include/Core/Modelica.h
@@ -144,6 +144,7 @@ using std::runtime_error;
   using boost::tuple;
   using boost::shared_ptr;
   using boost::weak_ptr;
+  using boost::dynamic_pointer_cast;
 #endif //USE_CPP_ELEVEN
 
 #if defined(USE_THREAD)