diff --git a/module/zfs/vdev_initialize.c b/module/zfs/vdev_initialize.c
index a27ab3c25919..3e691c7f5320 100644
--- a/module/zfs/vdev_initialize.c
+++ b/module/zfs/vdev_initialize.c
@@ -32,6 +32,7 @@
 #include <sys/dsl_synctask.h>
 #include <sys/zap.h>
 #include <sys/dmu_tx.h>
+#include <sys/vdev_initialize.h>
 
 /*
  * Value that is written to disk during initialization.
@@ -424,7 +425,7 @@ vdev_initialize_load(vdev_t *vd)
  * Convert the logical range into a physical range and add it to our
  * avl tree.
  */
-void
+static void
 vdev_initialize_range_add(void *arg, uint64_t start, uint64_t size)
 {
 	vdev_t *vd = arg;