diff --git a/src/utf.c b/src/utf.c
index 9f4cb93..92484d0 100644
--- a/src/utf.c
+++ b/src/utf.c
@@ -6,7 +6,7 @@
  */
 
 #include <string.h>
-#include <stdint.h>
+#include "utf.h"
 
 int utf8_encode(int32_t codepoint, char *buffer, int *size)
 {