diff --git a/config.h b/config.h
index d42977f..7d3776f 100644
--- a/config.h
+++ b/config.h
@@ -10,6 +10,7 @@
 #define config_h
 
 #include <stdio.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>