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 a540e56..6345643 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
@@ -867,9 +867,9 @@
     /**
      * Calculate delta statistics by subtracting previous from new statistics.
      *
-     * @param deviceId
-     * @param prvStats
-     * @param newStats
+     * @param deviceId device identifier
+     * @param prvStats previous port statistics
+     * @param newStats new port statistics
      * @return PortStatistics
      */
     public PortStatistics calcDeltaStats(DeviceId deviceId, PortStatistics prvStats, PortStatistics newStats) {