diff --git a/test/check-storage-home-reuse b/test/check-storage-home-reuse
index 0765017840..4f84642a5a 100755
--- a/test/check-storage-home-reuse
+++ b/test/check-storage-home-reuse
@@ -128,8 +128,8 @@ class TestStorageHomeReuse(VirtInstallMachineCase, _TestStorageHomeReuseHelpers)
         if self.is_efi:
             r.check_disk_row(dev, "/boot/efi", f"{dev}2", "629 MB", True, "efi", is_encrypted=False)
         r.check_disk_row(dev, "/boot", f"{dev}4", BOOT_PARTITION_DEFAULT_SIZE_GB, True, "xfs", is_encrypted=False)
-        r.check_disk_row(dev, "/", f"{dev}3", "13.9 GB", True, "btrfs subvolume", is_encrypted=False)
-        r.check_disk_row(dev, "/home", f"{dev}3", "13.9 GB", False, "btrfs subvolume", is_encrypted=False,
+        r.check_disk_row(dev, "/", f"{dev}3", "13.8 GB", True, "btrfs subvolume", is_encrypted=False)
+        r.check_disk_row(dev, "/home", f"{dev}3", "13.8 GB", False, "btrfs subvolume", is_encrypted=False,
                          action="mount")
 
     @disk_images([("fedora-rawhide", 15)])
@@ -217,8 +217,8 @@ class TestStorageHomeReuse(VirtInstallMachineCase, _TestStorageHomeReuseHelpers)
         # check selected disks are shown
         r.check_disk(dev_fedora1, f"16.1 GB {dev_fedora1} (Virtio Block Device)")
         r.check_disk_row(dev_fedora1, parent=f"{dev_fedora1}1", action="delete")
-        r.check_disk_row(dev_fedora1, "/", f"{dev_fedora1}3", "13.9 GB", True, "btrfs subvolume", is_encrypted=False)
-        r.check_disk_row(dev_fedora1, "/home", f"{dev_fedora1}3", "13.9 GB", False, "btrfs subvolume", is_encrypted=False,
+        r.check_disk_row(dev_fedora1, "/", f"{dev_fedora1}3", "13.8 GB", True, "btrfs subvolume", is_encrypted=False)
+        r.check_disk_row(dev_fedora1, "/home", f"{dev_fedora1}3", "13.8 GB", False, "btrfs subvolume", is_encrypted=False,
                          action="mount")
         r.check_disk_row(dev_fedora1, "/boot", f"{dev_fedora1}4", BOOT_PARTITION_DEFAULT_SIZE_GB, True, "xfs", is_encrypted=False)