diff --git a/include/Nazara/Lua/LuaState.hpp b/include/Nazara/Lua/LuaState.hpp
index f3bfdc34a..fe34d794a 100644
--- a/include/Nazara/Lua/LuaState.hpp
+++ b/include/Nazara/Lua/LuaState.hpp
@@ -15,6 +15,7 @@
 #include <Nazara/Lua/Enums.hpp>
 #include <cstddef>
 #include <functional>
+#include <type_traits>
 
 struct lua_Debug;
 struct lua_State;
@@ -182,7 +183,8 @@ namespace Nz
 		protected:
 			LuaState(lua_State* internalState);
 
-			template<typename T> T CheckBounds(int index, long long value) const;
+			template<typename T> std::enable_if_t<std::is_signed<T>::value, T> CheckBounds(int index, long long value) const;
+			template<typename T> std::enable_if_t<std::is_unsigned<T>::value, T> CheckBounds(int index, long long value) const;
 			virtual bool Run(int argCount, int resultCount);
 
 			static int ProxyFunc(lua_State* internalState);
diff --git a/include/Nazara/Lua/LuaState.inl b/include/Nazara/Lua/LuaState.inl
index fa4ecaaf0..da191d8a2 100644
--- a/include/Nazara/Lua/LuaState.inl
+++ b/include/Nazara/Lua/LuaState.inl
@@ -771,7 +771,7 @@ namespace Nz
 	}
 
 	template<typename T>
-	T LuaState::CheckBounds(int index, long long value) const
+	std::enable_if_t<std::is_signed<T>::value, T> LuaState::CheckBounds(int index, long long value) const
 	{
 		constexpr long long minBounds = std::numeric_limits<T>::min();
 		constexpr long long maxBounds = std::numeric_limits<T>::max();
@@ -785,6 +785,21 @@ namespace Nz
 		return static_cast<T>(value);
 	}
 
+	template<typename T>
+	std::enable_if_t<std::is_unsigned<T>::value, T> LuaState::CheckBounds(int index, long long value) const
+	{
+		constexpr unsigned long long minBounds = 0;
+		constexpr unsigned long long maxBounds = std::numeric_limits<T>::max();
+		if (value < minBounds || value > maxBounds)
+		{
+			Nz::StringStream stream;
+			stream << "Argument #" << index << " is outside value range [" << minBounds << ", " << maxBounds << "] (" << value << ')';
+			Error(stream);
+		}
+
+		return static_cast<T>(value);
+	}
+
 	inline LuaState LuaState::GetState(lua_State* internalState)
 	{
 		return LuaState(internalState);