diff --git a/tests/virtio-scsi-test.c b/tests/virtio-scsi-test.c
index 6e91ca9c2b..66d8491e9d 100644
--- a/tests/virtio-scsi-test.c
+++ b/tests/virtio-scsi-test.c
@@ -239,9 +239,12 @@ static void hotplug(void)
 static void test_unaligned_write_same(void)
 {
     QVirtIOSCSI *vs;
-    uint8_t buf[512] = { 0 };
-    const uint8_t write_same_cdb[CDB_SIZE] = { 0x41, 0x00, 0x00, 0x00, 0x00,
+    uint8_t buf1[512] = { 0 };
+    uint8_t buf2[512] = { 1 };
+    const uint8_t write_same_cdb_1[CDB_SIZE] = { 0x41, 0x00, 0x00, 0x00, 0x00,
                                                0x01, 0x00, 0x00, 0x02, 0x00 };
+    const uint8_t write_same_cdb_2[CDB_SIZE] = { 0x41, 0x00, 0x00, 0x00, 0x00,
+                                               0x01, 0x00, 0x33, 0x00, 0x00 };
 
     qvirtio_scsi_start("-drive file=blkdebug::null-co://,if=none,id=dr1"
                        ",format=raw,file.align=4k "
@@ -249,7 +252,10 @@ static void test_unaligned_write_same(void)
     vs = qvirtio_scsi_pci_init(PCI_SLOT);
 
     g_assert_cmphex(0, ==,
-        virtio_scsi_do_command(vs, write_same_cdb, NULL, 0, buf, 512, NULL));
+        virtio_scsi_do_command(vs, write_same_cdb_1, NULL, 0, buf1, 512, NULL));
+
+    g_assert_cmphex(0, ==,
+        virtio_scsi_do_command(vs, write_same_cdb_2, NULL, 0, buf2, 512, NULL));
 
     qvirtio_scsi_pci_free(vs);
     qvirtio_scsi_stop();