diff --git a/hio/lib/dns-cli.c b/hio/lib/dns-cli.c
index 50e1347..206f891 100644
--- a/hio/lib/dns-cli.c
+++ b/hio/lib/dns-cli.c
@@ -26,6 +26,7 @@
 #include <hio-sck.h>
 #include "hio-prv.h"
 
+#include <sys/types.h>
 #include <netinet/in.h>
 
 struct hio_svc_dns_t
diff --git a/hio/lib/sck.c b/hio/lib/sck.c
index 54b0c1f..7ec9b8c 100644
--- a/hio/lib/sck.c
+++ b/hio/lib/sck.c
@@ -25,6 +25,7 @@
 #include <hio-sck.h>
 #include "hio-prv.h"
 
+#include <sys/types.h>
 #include <sys/socket.h>
 #include <fcntl.h>
 #include <unistd.h>
diff --git a/hio/lib/sys-mux.c b/hio/lib/sys-mux.c
index 7551eb2..2f87f3a 100644
--- a/hio/lib/sys-mux.c
+++ b/hio/lib/sys-mux.c
@@ -104,7 +104,7 @@ int hio_sys_initmux (hio_t* hio)
 	{
 		#if defined(FD_CLOEXEC)
 		int flags = fcntl(mux->kq, F_GETFD);
-		if (flags >= 0) fcntl (mux->kq, F_SETFD, flag | FD_CLOEXEC);
+		if (flags >= 0) fcntl (mux->kq, F_SETFD, flags | FD_CLOEXEC);
 		#endif
 	}
 	#endif
diff --git a/hio/lib/sys-prv.h b/hio/lib/sys-prv.h
index 8de5386..74964cf 100644
--- a/hio/lib/sys-prv.h
+++ b/hio/lib/sys-prv.h
@@ -30,6 +30,7 @@
 #include "hio-prv.h"
 
 #if defined(HAVE_SYS_EVENT_H) && defined(HAVE_KQUEUE) && defined(HAVE_KEVENT)
+#	include <sys/types.h>
 #	include <sys/event.h>
 #	define USE_KQUEUE
 #elif defined(HAVE_SYS_EPOLL_H)