diff --git a/include/beast/websocket/stream.hpp b/include/beast/websocket/stream.hpp
index 67de5323..ae39300b 100644
--- a/include/beast/websocket/stream.hpp
+++ b/include/beast/websocket/stream.hpp
@@ -2583,9 +2583,6 @@ public:
             is received. In this case, the operation will eventually
             complete with the error set to @ref error::closed.
 
-        @param op A value to receive the message type.
-        This object must remain valid until the handler is called.
-
         @param buffer A dynamic buffer to hold the message data after
         any masking or decompression has been applied.
 
@@ -2623,9 +2620,6 @@ public:
             is received. In this case, the operation will eventually
             complete with the error set to @ref error::closed.
 
-        @param op A value to receive the message type.
-        This object must remain valid until the handler is called.
-
         @param buffer A dynamic buffer to hold the message data after
         any masking or decompression has been applied.
 
@@ -2674,9 +2668,6 @@ public:
         read and asynchronous write operation pending simultaneously
         (a user initiated call to @ref async_close counts as a write).
 
-        @param op A value to receive the message type.
-        This object must remain valid until the handler is called.
-
         @param buffer A dynamic buffer to hold the message data after
         any masking or decompression has been applied. This object must
         remain valid until the handler is called.