diff --git a/include/sys/poll.h b/include/sys/poll.h
index c17057c68a..08b936aff6 100644
--- a/include/sys/poll.h
+++ b/include/sys/poll.h
@@ -117,7 +117,6 @@ struct pollfd
 
   /* Non-standard fields used internally by NuttX. */
 
-  FAR void    *ptr;     /* The psock or file being polled */
   FAR void    *arg;     /* The poll callback function argument */
   pollcb_t     cb;      /* The poll callback function */
   FAR void    *priv;    /* For use by drivers */