diff --git a/src/Library/Natures/NatureLibrary.hpp b/src/Library/Natures/NatureLibrary.hpp
index 69f3b1a..0668871 100644
--- a/src/Library/Natures/NatureLibrary.hpp
+++ b/src/Library/Natures/NatureLibrary.hpp
@@ -18,6 +18,12 @@ namespace PkmnLib::Library {
         explicit NatureLibrary(uint8_t size = 32)
             : _items(Arbutils::Collections::Dictionary<Arbutils::CaseInsensitiveConstString, const Nature*>(size)) {}
 
+        ~NatureLibrary(){
+            for (auto& kv : _items){
+                delete kv.second;
+            }
+        }
+
         inline void LoadNature(const Arbutils::CaseInsensitiveConstString& name, const Nature* nature) {
             _items.Insert(name, nature);
         }