diff --git a/old/v2/src/dis86.h b/old/v2/src/dis86.h
index eef9b68..16b0dc8 100644
--- a/old/v2/src/dis86.h
+++ b/old/v2/src/dis86.h
@@ -1,6 +1,7 @@
 #pragma once
 #include <stdlib.h>
 #include <stdbool.h>
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {