diff --git a/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java b/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
index 51ea328..7b11798 100644
--- a/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
+++ b/core/net/src/main/java/org/onlab/onos/net/flow/impl/FlowRuleManager.java
@@ -33,6 +33,9 @@
 
 import com.google.common.collect.Lists;
 
+/**
+ * Provides implementation of the flow NB &amp; SB APIs.
+ */
 @Component(immediate = true)
 @Service
 public class FlowRuleManager