diff --git a/apm-network/src/main/proto/TraceSegmentService.proto b/apm-network/src/main/proto/TraceSegmentService.proto
index a1e0aa134..ea4c2c994 100644
--- a/apm-network/src/main/proto/TraceSegmentService.proto
+++ b/apm-network/src/main/proto/TraceSegmentService.proto
@@ -35,10 +35,11 @@ message TraceSegmentReference {
     int32 parentApplicationInstanceId = 4;
     string networkAddress = 5;
     int32 networkAddressId = 6;
-    string entryServiceName = 7;
-    int32 entryServiceId = 8;
-    string parentServiceName = 9;
-    int32 parentServiceId = 10;
+    int32 entryApplicationInstanceId = 7;
+    string entryServiceName = 8;
+    int32 entryServiceId = 9;
+    string parentServiceName = 10;
+    int32 parentServiceId = 11;
 }
 
 message SpanObject {