diff --git a/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java b/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java
index 1aecfb4..dafa273 100644
--- a/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java
+++ b/core/api/src/main/java/org/onlab/onos/mastership/MastershipEvent.java
@@ -51,7 +51,7 @@
      *
      * @param type   device event type
      * @param device event device subject
-     * @param info mastership role information subject
+     * @param info   mastership role information subject
      */
     public MastershipEvent(Type type, DeviceId device, RoleInfo info) {
         super(type, device);
@@ -64,7 +64,7 @@
      *
      * @param type   mastership event type
      * @param device event device subject
-     * @param master master ID subject
+     * @param info   role information
      * @param time   occurrence time
      */
     public MastershipEvent(Type type, DeviceId device, RoleInfo info, long time) {