--- a/src/order_cmd.cpp	Tue Apr 08 15:48:32 2008 +0000
+++ b/src/order_cmd.cpp	Tue Apr 08 16:15:31 2008 +0000
@@ -382,6 +382,8 @@
 			 * [non-stop]
 			 * non-stop orders (if any) are only valid for trains */
 			if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN) return CMD_ERROR;
+
+			break;
 		}
 
 		default: return CMD_ERROR;