diff --git a/src/mappings.hpp b/src/mappings.hpp
index 2284814..e3bebc5 100644
--- a/src/mappings.hpp
+++ b/src/mappings.hpp
@@ -11,6 +11,7 @@ public:
     this->mappings = mappings;
     this->renames = renames;
   }
+  ~Mappings() = default;
   static Mappings load();
   std::string map(std::string inp);
 };