diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09f5b2ac..84ed5f0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@ Release history for s390-tools (MIT version)
 
 * __v2.2.1 (xxxx-xx-xx)__
 
+  For Linux kernel version: 4.15
+
+  Bug Fixes:
+  - zgetdump: Fix handling of DASD multi-volume dump for partitions above 4 GB
+
 * __v2.2.0 (2017-12-07)__
 
   For Linux kernel version: 4.14
diff --git a/zdump/dfi_s390mv.c b/zdump/dfi_s390mv.c
index ba8d3cc6..a226b05e 100644
--- a/zdump/dfi_s390mv.c
+++ b/zdump/dfi_s390mv.c
@@ -242,7 +242,7 @@ static void vol_init(struct vol *vol, struct vol_parm *vol_parm, int ssid,
 
 	sprintf(vol->bus_id, "0.%x.%04x", ssid, vol_parm->devno);
 	vol->blk_size = vol_parm->blk_size << 8;
-	vol->part_off = vol_parm->start_blk * vol->blk_size;
+	vol->part_off = (u64)vol_parm->start_blk * vol->blk_size;
 	vol->part_size = blk_cnt * vol->blk_size;
 	vol->status = dev_from_busid(vol->bus_id, &vol->dev);
 	vol->sign = SIGN_VALID;