diff --git a/libs/gib/regex.c b/libs/gib/regex.c
index 82caa884f..1d6e19dc4 100644
--- a/libs/gib/regex.c
+++ b/libs/gib/regex.c
@@ -28,6 +28,7 @@
 
 /* We need this for `regex.h', and perhaps for the Emacs include files.  */
 #include <sys/types.h>
+#include <stdint.h>
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"