diff --git a/man2/msgctl.2 b/man2/msgctl.2
index 57a241ebe..a735ce9c4 100644
--- a/man2/msgctl.2
+++ b/man2/msgctl.2
@@ -65,7 +65,7 @@ struct msqid_ds {
     time_t          msg_rtime;    /* Time of last msgrcv(2) */
     time_t          msg_ctime;    /* Creation time/time of last
                                      modification via msgctl() */
-    unsigned long   __msg_cbytes; /* Current number of bytes in
+    unsigned long   msg_cbytes;   /* Current number of bytes in
                                      queue (nonstandard) */
     msgqnum_t       msg_qnum;     /* Current number of messages
                                      in queue */