diff --git a/dumper/dumper.c b/dumper/dumper.c
index c4539b5..2de2b2b 100644
--- a/dumper/dumper.c
+++ b/dumper/dumper.c
@@ -4,7 +4,6 @@
 #include <cose.h>
 #include <sys/stat.h>
 #include <cn-cbor/cn-cbor.h>
-#include <io.h>
 #include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>