diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c
index c929129..b77bd38 100644
--- a/libraries/libmdb/mdb.c
+++ b/libraries/libmdb/mdb.c
@@ -39,9 +39,7 @@
 #include <fcntl.h>
 
 #include <assert.h>
-#include <err.h>
 #include <errno.h>
-#include <fcntl.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>