diff --git a/mio/lib/dns.c b/mio/lib/dns.c
index 194502e..7a4b9d4 100644
--- a/mio/lib/dns.c
+++ b/mio/lib/dns.c
@@ -524,7 +524,7 @@ mio_dnsc_t* mio_dnsc_start (mio_t* mio)
 	xtn = (dnsc_sck_xtn_t*)mio_dev_sck_getxtn(dnsc->sck);
 	xtn->dnsc = dnsc;
 
-	/* bind if requested */
+	/* TODO: bind if requested */
 	/*if (mio_dev_sck_bind(dev, ....) <= -1) goto oops;*/
 {
 mio_uint32_t ia = 0x01010101; /* 1.1.1.1 */
diff --git a/mio/lib/mio-sck.h b/mio/lib/mio-sck.h
index 73b360f..8ce03b7 100644
--- a/mio/lib/mio-sck.h
+++ b/mio/lib/mio-sck.h
@@ -523,7 +523,7 @@ MIO_EXPORT mio_dev_sck_t* mio_dev_sck_make (
 #if defined(MIO_HAVE_INLINE)
 static MIO_INLINE void* mio_dev_sck_getxtn (mio_dev_sck_t* sck) { return (void*)(sck + 1); }
 #else
-#	define mio_dev_sck_getxtn(sck) ((void*)(sck) + 1)
+#	define mio_dev_sck_getxtn(sck) ((void*)(((mio_dev_sck_t*)sck) + 1))
 #endif
 
 MIO_EXPORT int mio_dev_sck_bind (