diff --git a/src/dorkbox/network/serialization/KryoExtra.kt b/src/dorkbox/network/serialization/KryoExtra.kt
index 9b22b201..dfd7b3cd 100644
--- a/src/dorkbox/network/serialization/KryoExtra.kt
+++ b/src/dorkbox/network/serialization/KryoExtra.kt
@@ -22,7 +22,7 @@ import dorkbox.network.connection.Connection
 import org.agrona.DirectBuffer
 
 /**
- * Nothing in this class is thread safe
+ * READ and WRITE are exclusive to each other and can be performed in different threads.
  */
 class KryoExtra() : Kryo() {
     // for kryo serialization