diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 0426cba79a275..296889dc193f5 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -418,8 +418,8 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
 	rec->scsi_retries = sc->retries;
 	rec->scsi_allowed = sc->allowed;
 	rec->scsi_id = sc->device->id;
-	/* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */
 	rec->scsi_lun = (u32)sc->device->lun;
+	rec->scsi_lun_64_hi = (u32)(sc->device->lun >> 32);
 	rec->host_scribble = (unsigned long)sc->host_scribble;
 
 	memcpy(rec->scsi_opcode, sc->cmnd,
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 9b8eb8eb8b4c4..2039e7510a304 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -196,7 +196,7 @@ enum zfcp_dbf_scsi_id {
  * @id: unique number of recovery record type
  * @tag: identifier string specifying the location of initiation
  * @scsi_id: scsi device id
- * @scsi_lun: scsi device logical unit number
+ * @scsi_lun: scsi device logical unit number, low part of 64 bit, old 32 bit
  * @scsi_result: scsi result
  * @scsi_retries: current retry number of scsi request
  * @scsi_allowed: allowed retries
@@ -206,6 +206,7 @@ enum zfcp_dbf_scsi_id {
  * @host_scribble: LLD specific data attached to SCSI request
  * @pl_len: length of paload stored as zfcp_dbf_pay
  * @fsf_rsp: response for fsf request
+ * @scsi_lun_64_hi: scsi device logical unit number, high part of 64 bit
  */
 struct zfcp_dbf_scsi {
 	u8 id;
@@ -222,6 +223,7 @@ struct zfcp_dbf_scsi {
 	u64 host_scribble;
 	u16 pl_len;
 	struct fcp_resp_with_ext fcp_rsp;
+	u32 scsi_lun_64_hi;
 } __packed;
 
 /**