diff --git a/include/Nazara/Core/ParameterFile.hpp b/include/Nazara/Core/ParameterFile.hpp
index a20625f4e..cc4330426 100644
--- a/include/Nazara/Core/ParameterFile.hpp
+++ b/include/Nazara/Core/ParameterFile.hpp
@@ -43,8 +43,8 @@ namespace Nz
 			struct Array_t {};
 			struct OptionalBlock_t {};
 
-			static constexpr Array_t Array{};
-			static constexpr OptionalBlock_t OptionalBlock{};
+			static constexpr inline Array_t Array{};
+			static constexpr inline OptionalBlock_t OptionalBlock{};
 
 		private:
 			using ValueHandler = std::function<void(ParameterFile& file)>;