diff --git a/transport/src/main/java/io/netty/channel/MessageSizeEstimator.java b/transport/src/main/java/io/netty/channel/MessageSizeEstimator.java
index 5c84927781a..92f164dc5d5 100644
--- a/transport/src/main/java/io/netty/channel/MessageSizeEstimator.java
+++ b/transport/src/main/java/io/netty/channel/MessageSizeEstimator.java
@@ -16,8 +16,8 @@
 package io.netty.channel;
 
 /**
- * Responsible to estimate size of a message. The size represent how much memory the message will ca. reserve in
- * memory.
+ * Responsible to estimate the size of a message. The size represents approximately how much memory the message will
+ * reserve in memory.
  */
 public interface MessageSizeEstimator {