diff --git a/include/zmq.h b/include/zmq.h
index 3327b6bf..2505641e 100644
--- a/include/zmq.h
+++ b/include/zmq.h
@@ -176,7 +176,7 @@ ZMQ_EXPORT int zmq_term (void *context);
 /*  0MQ message definition.                                                   */
 /******************************************************************************/
 
-typedef struct {unsigned char _ [32];} zmq_msg_t;
+typedef struct zmq_msg_t {unsigned char _ [32];} zmq_msg_t;
 
 typedef void (zmq_free_fn) (void *data, void *hint);