diff --git a/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java b/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
index b65faa9..1f41fda 100644
--- a/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
+++ b/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
@@ -117,7 +117,7 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     public MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     public SegmentRoutingService srService;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)