diff --git a/src/datastore_access.hpp b/src/datastore_access.hpp
index 6686b92..e70d9c9 100644
--- a/src/datastore_access.hpp
+++ b/src/datastore_access.hpp
@@ -54,6 +54,7 @@
 
     virtual void commitChanges() = 0;
     virtual void discardChanges() = 0;
+    virtual void copyConfig(const Datastore source, const Datastore destination) = 0;
 
 private:
     friend class DataQuery;