diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
index 789b6bf..f40a0f1 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
@@ -86,6 +86,7 @@
     /**
      * Applies a batch operation of FlowRules.
      *
+     * @param batch batch operation to apply
      * @return future indicating the state of the batch operation
      */
     Future<CompletedBatchOperation> applyBatch(FlowRuleBatchOperation batch);