diff --git a/doc/zmq_bind.txt b/doc/zmq_bind.txt
index 4275499f..78d78e23 100644
--- a/doc/zmq_bind.txt
+++ b/doc/zmq_bind.txt
@@ -47,11 +47,11 @@ The requested 'transport' protocol is not supported.
 *ENOCOMPATPROTO*::
 The requested 'transport' protocol is not compatible with the socket type.
 *EADDRINUSE*::
-The given 'address' is already in use.
+The requested 'address' is already in use.
 *EADDRNOTAVAIL*::
-Requested 'address' was not local.
+The requested 'address' was not local.
 *ENODEV*::
-A nonexistent interface was requested.
+The requested 'address' specifies a nonexistent interface.
 
 
 EXAMPLE
diff --git a/doc/zmq_setsockopt.txt b/doc/zmq_setsockopt.txt
index 6b31302b..18c55bd5 100644
--- a/doc/zmq_setsockopt.txt
+++ b/doc/zmq_setsockopt.txt
@@ -242,13 +242,16 @@ rc = zmq_setsockopt (socket, ZMQ_SUBSCRIBE, "ANIMALS.CATS", 12);
 
 .Setting I/O thread affinity
 ----
+int64_t affinity;
 /* Incoming connections on TCP port 5555 shall be handled by I/O thread 1 */
-rc = zmq_setsockopt (socket, ZMQ_AFFINITY, 1, sizeof (int64_t));
+affinity = 1;
+rc = zmq_setsockopt (socket, ZMQ_AFFINITY, &affinity, sizeof affinity);
 assert (rc);
 rc = zmq_bind (socket, "tcp://lo:5555");
 assert (rc);
 /* Incoming connections on TCP port 5556 shall be handled by I/O thread 2 */
-rc = zmq_setsockopt (socket, ZMQ_AFFINITY, 2, sizeof (int64_t));
+affinity = 2;
+rc = zmq_setsockopt (socket, ZMQ_AFFINITY, &affinity, sizeof affinity);
 assert (rc);
 rc = zmq_bind (socket, "tcp://lo:5555");
 assert (rc);