diff --git a/schema.graphqls b/schema.graphqls
index 6db52e7..20106cc 100644
--- a/schema.graphqls
+++ b/schema.graphqls
@@ -13,6 +13,7 @@ type System {
 type Route {
   name: String!
   id: ID!
+  systemId: ID!
   orderedStop(forStopId: ID): OrderedStop
   shuttles: [Shuttle!]
   polylineCoordinates: [Coordinates!]!
@@ -30,6 +31,7 @@ type OrderedStop {
 
 type Stop {
   id: ID!
+  systemId: ID!
   name: String!
   coordinates: Coordinates!
   etas: [ETA!]
@@ -51,6 +53,7 @@ type ETA {
 
 type Shuttle {
   name: String!
+  systemId: ID!
   id: ID!,
   coordinates: Coordinates!
   route: Route