diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 39c6f8c..ba5b3eb 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -552,6 +552,9 @@
 	/* task mgmt function in progress */
 	unsigned tmf_in_progress:1;
 
+	/* Asynchronous scan in progress */
+	unsigned async_scan:1;
+
 	/*
 	 * Optional work queue to be utilized by the transport
 	 */