diff --git a/LiteLoader/Header/MC/ListTag.hpp b/LiteLoader/Header/MC/ListTag.hpp
index f8438d6..fc57a09 100644
--- a/LiteLoader/Header/MC/ListTag.hpp
+++ b/LiteLoader/Header/MC/ListTag.hpp
@@ -49,7 +49,7 @@ public:
     LIAPI std::vector<Tag*>::const_iterator begin() const;
     LIAPI std::vector<Tag*>::const_iterator end() const;
 
-    inline int size() const{
+    inline size_t size() const{
         return this->val.size();
     };