diff --git a/common/main/weapon.h b/common/main/weapon.h
index f0934415e..ed1fc2a55 100644
--- a/common/main/weapon.h
+++ b/common/main/weapon.h
@@ -354,9 +354,9 @@ class has_weapon_result
 {
 	uint8_t m_result;
 public:
-	static constexpr tt::integral_constant<uint8_t, 1> has_weapon_flag{};
-	static constexpr tt::integral_constant<uint8_t, 2> has_energy_flag{};
-	static constexpr tt::integral_constant<uint8_t, 4> has_ammo_flag{};
+	static constexpr auto has_weapon_flag = tt::integral_constant<uint8_t, 1>{};
+	static constexpr auto has_energy_flag = tt::integral_constant<uint8_t, 2>{};
+	static constexpr auto has_ammo_flag   = tt::integral_constant<uint8_t, 4>{};
 	has_weapon_result() = default;
 	constexpr has_weapon_result(uint8_t r) : m_result(r)
 	{