diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index cb22a708c40f11fef7a803b39af98c9d7da0a3e2..320b1eabd8e573a44108c18f3e2c74f17aaf27af 100644
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -50,7 +50,7 @@
 #include <errno.h>
 #include <limits.h>
 #include <stddef.h>
-#include <stdint.h>
+#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>