diff --git a/core/store/dist/src/main/java/org/onosproject/store/device/impl/GossipDeviceStore.java b/core/store/dist/src/main/java/org/onosproject/store/device/impl/GossipDeviceStore.java
index 7f1539d..d212f01 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/device/impl/GossipDeviceStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/device/impl/GossipDeviceStore.java
@@ -477,6 +477,9 @@
             }
 
             Timestamp lastTimestamp = primDescs.getLatestTimestamp();
+            if (lastTimestamp == null) {
+                lastTimestamp = deviceClockService.getTimestamp(deviceId);
+            }
             if (timestamp.compareTo(lastTimestamp) <= 0) {
                 // outdated event ignore
                 return null;