diff --git a/src/Library/Moves/MoveData.cpp b/src/Library/Moves/MoveData.cpp
index bf26813..2e46991 100644
--- a/src/Library/Moves/MoveData.cpp
+++ b/src/Library/Moves/MoveData.cpp
@@ -2,7 +2,7 @@
 #include <utility>
 PkmnLib::Library::MoveData::MoveData(const std::string& name, uint8_t type,
                                      PkmnLib::Library::MoveCategory category, uint8_t power, uint8_t accuracy,
-                                     uint8_t baseUsage, CreatureLib::Library::AttackTarget target, uint8_t priority,
+                                     uint8_t baseUsage, CreatureLib::Library::AttackTarget target, int8_t priority,
                                      std::unordered_set<std::string> flags)
     : AttackData(name, type, static_cast<CreatureLib::Library::AttackCategory>(category), power, accuracy, baseUsage,
                  target, priority, std::move(flags)) {}
diff --git a/src/Library/Moves/MoveData.hpp b/src/Library/Moves/MoveData.hpp
index 9b990e9..b4438d4 100644
--- a/src/Library/Moves/MoveData.hpp
+++ b/src/Library/Moves/MoveData.hpp
@@ -10,7 +10,7 @@ namespace PkmnLib::Library {
 
     public:
         MoveData(const std::string& name, uint8_t type, PkmnLib::Library::MoveCategory category, uint8_t power,
-                 uint8_t accuracy, uint8_t baseUsage, CreatureLib::Library::AttackTarget target, uint8_t priority,
+                 uint8_t accuracy, uint8_t baseUsage, CreatureLib::Library::AttackTarget target, int8_t priority,
                  std::unordered_set<std::string> flags);
 
         PkmnLib::Library::MoveCategory GetCategory() const;