diff --git a/include/eXevent.h b/include/eXevent.h
index 3fbae7f..ffb14e8 100644
--- a/include/eXevent.h
+++ b/include/eXevent.h
@@ -47,6 +47,7 @@ class eXEvent
    public:
 
       eXEvent();
+      eXEvent(const eXEvent&) = default;
       eXEvent(starlightConstants::event &ev);
       ~eXEvent();
 
diff --git a/include/vector3.h b/include/vector3.h
index 565a97f..77f744a 100644
--- a/include/vector3.h
+++ b/include/vector3.h
@@ -43,6 +43,7 @@ class vector3
 {
    public:
       vector3();
+      vector3(const vector3&) = default;
       vector3(double *vec);
       vector3(double x, double y, double z);
       virtual ~vector3();