diff --git a/site2/docs/reference-configuration.md b/site2/docs/reference-configuration.md
index f5b40aa67ecb1..a1015a15e4c1f 100644
--- a/site2/docs/reference-configuration.md
+++ b/site2/docs/reference-configuration.md
@@ -96,7 +96,7 @@ BookKeeper is a replicated log storage system that Pulsar uses for durable stora
 |dbStorage_rocksDB_numLevels||-1|
 |dbStorage_rocksDB_numFilesInLevel0||4|
 |dbStorage_rocksDB_maxSizeInLevel1MB||256|
-
+| nettyMaxFrameSizeBytes | Set the maximum netty frame size in bytes. If the size of a received message is larger than the configured value, the message is rejected. | 1 GB |
 
 
 ## Broker