diff --git a/module/zfs/vdev_disk.c b/module/zfs/vdev_disk.c
index 7b4cf8e43a..bae4cdcdc6 100644
--- a/module/zfs/vdev_disk.c
+++ b/module/zfs/vdev_disk.c
@@ -30,6 +30,7 @@
 #include <sys/fs/zfs.h>
 #include <sys/zio.h>
 #include <sys/sunldi.h>
+#include <zfs_config.h>
 
 /*
  * Virtual device vector for disks.