diff --git a/ft-lib/dm-ioctl.c b/ft-lib/dm-ioctl.c
index b40c399..a40b921 100644
--- a/ft-lib/dm-ioctl.c
+++ b/ft-lib/dm-ioctl.c
@@ -8,6 +8,7 @@
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/sysmacros.h>
 #include <fcntl.h>
 #include <unistd.h>