diff --git a/tools/gbagfx/huff.c b/tools/gbagfx/huff.c
index 5d55be970..143ed79be 100644
--- a/tools/gbagfx/huff.c
+++ b/tools/gbagfx/huff.c
@@ -2,6 +2,7 @@
 #include <string.h>
 #include <assert.h>
 #include <stdio.h>
+#include <stdint.h>
 #include "global.h"
 #include "huff.h"