diff --git a/src/order_cmd.cpp b/src/order_cmd.cpp
index 8d251dc0b8..263aaba2fb 100644
--- a/src/order_cmd.cpp
+++ b/src/order_cmd.cpp
@@ -2141,7 +2141,7 @@ VehicleOrderID ProcessConditionalOrder(const Order *order, const Vehicle *v)
 		case OCV_UNCONDITIONALLY:    skip_order = true; break;
 		case OCV_CARGO_WAITING: {
 			StationID next_station = GetNextRealStation(v, order);
-			if (Station::IsValidID(next_station)) skip_order = OrderConditionCompare(occ, !Station::Get(next_station)->goods[value].cargo.AvailableCount() > 0, value);
+			if (Station::IsValidID(next_station)) skip_order = OrderConditionCompare(occ, !(Station::Get(next_station)->goods[value].cargo.AvailableCount() > 0), value);
 				break;
 		}
 		case OCV_CARGO_ACCEPTANCE: {