diff --git a/similar/main/weapon.cpp b/similar/main/weapon.cpp
index 18aace0bc..e7464ad04 100644
--- a/similar/main/weapon.cpp
+++ b/similar/main/weapon.cpp
@@ -229,8 +229,9 @@ has_weapon_result player_has_primary_weapon(int weapon_num)
 has_weapon_result player_has_secondary_weapon(int weapon_num)
 {
 	int	return_value = 0;
+	const auto secondary_ammo = get_local_player_secondary_ammo()[weapon_num];
 	const auto weapon_index = Secondary_weapon_to_weapon_info[weapon_num];
-		if (Weapon_info[weapon_index].ammo_usage <= get_local_player_secondary_ammo()[weapon_num])
+	if (secondary_ammo && Weapon_info[weapon_index].ammo_usage <= secondary_ammo)
 		return_value = has_weapon_result::has_weapon_flag | has_weapon_result::has_energy_flag | has_weapon_result::has_ammo_flag;
 	return return_value;
 }