diff --git a/libtiff/tif_fax3sm.c b/libtiff/tif_fax3sm.c
index 822191ec..ba2fc532 100644
--- a/libtiff/tif_fax3sm.c
+++ b/libtiff/tif_fax3sm.c
@@ -1,5 +1,6 @@
 /* WARNING, this file was automatically generated by the
     mkg3states program */
+#include <stdint.h>
 #include "tiff.h"
 #include "tif_fax3.h"
  const TIFFFaxTabEnt TIFFFaxMainTable[128] = {