diff --git a/include/artifact.hpp b/include/artifact.hpp
index 462facc..b60b062 100644
--- a/include/artifact.hpp
+++ b/include/artifact.hpp
@@ -297,6 +297,7 @@ class SignalListArtifact: public Artifact {
 class SimOutputArtifact: public Artifact {
     public:
 
+    SimOutputArtifact() {};
     SimOutputArtifact(const std::vector<std::string>& sim_log, const std::vector<std::string>& error_log);
 
     /**