diff --git a/CHANGES.txt b/CHANGES.txt
index 9ce0df92c2..a42c86a0dd 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -5,6 +5,7 @@
  * IntrusiveStack.accumulate is not accumulating correctly (CASSANDRA-20670)
  * Add nodetool get/setguardrailsconfig commands (CASSANDRA-19552)
 Merged from 4.0:
+ * Add NativeTransportMaxConcurrentConnectionsPerIp to StorageProxyMBean (CASSANDRA-20642)
  * Make secondary index implementations notified about rows in fully expired SSTables in compaction (CASSANDRA-20829)
  * Ensure prepared_statement INSERT timestamp precedes eviction DELETE (CASSANDRA-19703)
 
diff --git a/src/java/org/apache/cassandra/service/StorageProxyMBean.java b/src/java/org/apache/cassandra/service/StorageProxyMBean.java
index 546143d515..1cb4f95797 100644
--- a/src/java/org/apache/cassandra/service/StorageProxyMBean.java
+++ b/src/java/org/apache/cassandra/service/StorageProxyMBean.java
@@ -56,6 +56,9 @@ public interface StorageProxyMBean
     public void setNativeTransportMaxConcurrentConnections(Long nativeTransportMaxConcurrentConnections);
     public Long getNativeTransportMaxConcurrentConnections();
 
+    public void setNativeTransportMaxConcurrentConnectionsPerIp(Long nativeTransportMaxConcurrentConnections);
+    public Long getNativeTransportMaxConcurrentConnectionsPerIp();
+
     public void reloadTriggerClasses();
 
     public long getReadRepairAttempted();