diff --git a/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java b/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
index ebcf943..852e143 100644
--- a/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
+++ b/core/api/src/main/java/org/onosproject/net/intent/LinkCollectionIntent.java
@@ -142,6 +142,7 @@
     public String toString() {
         return MoreObjects.toStringHelper(getClass())
                 .add("id", id())
+                .add("key", key())
                 .add("appId", appId())
                 .add("resources", resources())
                 .add("selector", selector())