diff --git a/lib/cocoa/TTransport.h b/lib/cocoa/TTransport.h
index bb0270e..1fa04f4 100644
--- a/lib/cocoa/TTransport.h
+++ b/lib/cocoa/TTransport.h
@@ -1,10 +1,10 @@
 @protocol TTransport <NSObject>
 
   /**
-   * Guarantees that all of len bytes are 
+   * Guarantees that all of len bytes are read
    *
-   * @param buf Array to read into
-   * @param off Index to start reading at
+   * @param buf Buffer to read into
+   * @param off Index in buffer to start storing bytes at
    * @param len Maximum number of bytes to read
    * @return The number of bytes actually read, which must be equal to len
    * @throws TTransportException if there was an error reading data