diff --git a/tests/expected/sfdisk/dos-write-dump b/tests/expected/sfdisk/dos-write-dump
index 480ced5fe..660c932d6 100644
--- a/tests/expected/sfdisk/dos-write-dump
+++ b/tests/expected/sfdisk/dos-write-dump
@@ -2,6 +2,7 @@ label: dos
 label-id: 0x1ddc8a79
 device: <removed>
 unit: sectors
+sector-size: 512
 
 <removed>1 : start=        2048, size=        6144, type=83, bootable
 <removed>2 : start=        8192, size=        6144, type=82
diff --git a/tests/expected/sfdisk/dos-write-json b/tests/expected/sfdisk/dos-write-json
index b9259cd59..8906685b1 100644
--- a/tests/expected/sfdisk/dos-write-json
+++ b/tests/expected/sfdisk/dos-write-json
@@ -4,6 +4,7 @@
       "id":"0x1ddc8a79",
       "device":"<removed>",
       "unit":"sectors",
+      "sectorsize":512,
       "partitions": [
          {"node":"<removed>1", "start":2048, "size":6144, "type":"83", "bootable":true},
          {"node":"<removed>2", "start":8192, "size":6144, "type":"82"},
diff --git a/tests/expected/sfdisk/gpt-write-dump b/tests/expected/sfdisk/gpt-write-dump
index 3ad79259f..2a007864e 100644
--- a/tests/expected/sfdisk/gpt-write-dump
+++ b/tests/expected/sfdisk/gpt-write-dump
@@ -4,6 +4,7 @@ device: <removed>
 unit: sectors
 first-lba: 2048
 last-lba: 102366
+sector-size: 512
 
 <removed>1 : start=        2048, size=        6144, type=44479540-F297-41B2-9AF7-D131D5F0458A, uuid=4DD6948A-44F8-4E6C-8BDC-064F740704F8
 <removed>2 : start=        8192, size=        6144, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=44B51DEF-5F04-465A-91AA-2889A62D8E49
diff --git a/tests/expected/sfdisk/gpt-write-json b/tests/expected/sfdisk/gpt-write-json
index f3944806a..07c712b87 100644
--- a/tests/expected/sfdisk/gpt-write-json
+++ b/tests/expected/sfdisk/gpt-write-json
@@ -6,6 +6,7 @@
       "unit":"sectors",
       "firstlba":2048,
       "lastlba":102366,
+      "sectorsize":512,
       "partitions": [
          {"node":"<removed>1", "start":2048, "size":6144, "type":"44479540-F297-41B2-9AF7-D131D5F0458A", "uuid":"4DD6948A-44F8-4E6C-8BDC-064F740704F8"},
          {"node":"<removed>2", "start":8192, "size":6144, "type":"0FC63DAF-8483-4772-8E79-3D69D8477DE4", "uuid":"44B51DEF-5F04-465A-91AA-2889A62D8E49"},