diff --git a/src/tools.c b/src/tools.c
index e2cb7a1..2405373 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -21,6 +21,7 @@ extern "C" {
 #endif
 
 #include <stdio.h>
+#include <stdint.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <sys/stat.h>