diff --git a/descriptor/reader/vehicle_reader.cc b/descriptor/reader/vehicle_reader.cc
index 93b5ca3977..2145c8181e 100644
--- a/descriptor/reader/vehicle_reader.cc
+++ b/descriptor/reader/vehicle_reader.cc
@@ -513,7 +513,6 @@ obj_desc_t *vehicle_reader_t::read_node(FILE *fp, obj_node_info_t &node)
 					desc->can_be_at_rear = (bool)decode_uint8(p);
 					desc->basic_constraint_prev = vehicle_desc_t::unknown_constraint;
 					desc->basic_constraint_next = vehicle_desc_t::unknown_constraint;
-					desc->mixed_load_prohibition = false;
 				}
 				desc->increase_maintenance_after_years = decode_uint16(p);
 				desc->increase_maintenance_by_percent = decode_uint16(p);
diff --git a/descriptor/vehicle_desc.h b/descriptor/vehicle_desc.h
index 8e0e4b7442..a9eb6f4898 100644
--- a/descriptor/vehicle_desc.h
+++ b/descriptor/vehicle_desc.h
@@ -264,7 +264,7 @@ class vehicle_desc_t : public obj_desc_transport_related_t {
 		weight = weight;
 		engine_type = (uint8)engine;
 		topspeed = speed;
-		is_tilting = bidirectional = can_lead_from_rear = available_only_as_upgrade = false;
+		mixed_load_prohibition = is_tilting = bidirectional = can_lead_from_rear = available_only_as_upgrade = false;
 		// These two lines are necessary for the building of way objects, so that they
 		// do not get stuck with constraints. 
 		way_constraints.set_permissive(0);