diff --git a/source/manage_hiscore_table.hpp b/source/manage_hiscore_table.hpp
index 2e99643..40449fc 100644
--- a/source/manage_hiscore_table.hpp
+++ b/source/manage_hiscore_table.hpp
@@ -51,9 +51,9 @@ class ManageHiScoreTable {
         static auto calculateChecksum(const Table& table) -> unsigned int;  // Calcula checksum de la tabla
 
         // Métodos auxiliares para loadFromFile
-        auto validateMagicNumber(SDL_IOStream* file, const std::string& file_path) -> bool;
-        auto validateVersion(SDL_IOStream* file, const std::string& file_path) -> bool;
-        auto readTableSize(SDL_IOStream* file, const std::string& file_path, int& table_size) -> bool;
-        auto readEntry(SDL_IOStream* file, const std::string& file_path, int index, HiScoreEntry& entry) -> bool;
-        auto verifyChecksum(SDL_IOStream* file, const std::string& file_path, const Table& temp_table) -> bool;
+        static auto validateMagicNumber(SDL_IOStream* file, const std::string& file_path) -> bool;
+        static auto validateVersion(SDL_IOStream* file, const std::string& file_path) -> bool;
+        static auto readTableSize(SDL_IOStream* file, const std::string& file_path, int& table_size) -> bool;
+        static auto readEntry(SDL_IOStream* file, const std::string& file_path, int index, HiScoreEntry& entry) -> bool;
+        static auto verifyChecksum(SDL_IOStream* file, const std::string& file_path, const Table& temp_table) -> bool;
 };
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