diff --git a/include/Nazara/Network/ENetPacket.hpp b/include/Nazara/Network/ENetPacket.hpp
index 5aecb0edd..54b0c42c6 100644
--- a/include/Nazara/Network/ENetPacket.hpp
+++ b/include/Nazara/Network/ENetPacket.hpp
@@ -28,6 +28,8 @@ namespace Nz
 
 	using ENetPacketFlags = Flags<ENetPacketFlag>;
 
+	constexpr ENetPacketFlags ENetPacketFlag_Unreliable = 0;
+
 	class MemoryPool;
 
 	struct ENetPacket