diff --git a/io/io_close.c b/io/io_close.c
index aa7b1bf..097c153 100644
--- a/io/io_close.c
+++ b/io/io_close.c
@@ -1,4 +1,5 @@
 #include <unistd.h>
+#include <sys/types.h>
 #include <sys/mman.h>
 #include "io_internal.h"
 
diff --git a/io/io_sendfile.c b/io/io_sendfile.c
index 45fa04f..5efd288 100644
--- a/io/io_sendfile.c
+++ b/io/io_sendfile.c
@@ -97,6 +97,7 @@ int64 io_sendfile(int64 s,int64 fd,uint64 off,uint64 n) {
 #else
 
 #include <unistd.h>
+#include <sys/types.h>
 #include <sys/mman.h>
 
 #define BUFSIZE 16384