diff --git a/src/Collections/Dictionary.hpp b/src/Collections/Dictionary.hpp
index d5af343..1418ddd 100644
--- a/src/Collections/Dictionary.hpp
+++ b/src/Collections/Dictionary.hpp
@@ -37,6 +37,8 @@ namespace ArbUt {
             return *this;
         }
 
+        ~Dictionary() noexcept { delete _map; }
+
         /// @brief Removes all items from the dictionary.
         inline void Clear() noexcept { _map->clear(); }