diff --git a/Reflection/Struct.hpp b/Reflection/Struct.hpp
index 24dbd489d..761b878ec 100644
--- a/Reflection/Struct.hpp
+++ b/Reflection/Struct.hpp
@@ -323,7 +323,7 @@ template <typename Owner> class StructImpl: public Struct {
 		}
 
 	private:
-		template <typename Type> bool declare_reflectable(Type *t, const std::string &name) {
+		template <typename Type> bool declare_reflectable([[maybe_unused]] Type *t, const std::string &name) {
 			if constexpr (std::is_base_of<Reflection::Struct, Type>::value) {
 				Reflection::Struct *const str = static_cast<Reflection::Struct *>(t);
 				declare_emplace(str, name);