diff --git a/utf8.cpp b/utf8.cpp
index 60d83d33d..196b52681 100644
--- a/utf8.cpp
+++ b/utf8.cpp
@@ -13,8 +13,9 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
-#include <sys/types.h>
 
+#include <sys/types.h>
+#include <stdint.h>
 #include <wchar.h>
 
 #include "utf8.h"
@@ -23,7 +24,6 @@
 #include <vector>
 #include <limits>
 
-
 #define _NXT	0x80
 #define _SEQ2	0xc0
 #define _SEQ3	0xe0