diff --git a/test/units/TEST-64-UDEV-STORAGE.sh b/test/units/TEST-64-UDEV-STORAGE.sh
index 69ca6e4d7a..af93532625 100755
--- a/test/units/TEST-64-UDEV-STORAGE.sh
+++ b/test/units/TEST-64-UDEV-STORAGE.sh
@@ -1186,6 +1186,12 @@ EOF
     helper_check_device_units
     # Cleanup
     mdadm -v --stop "$raid_dev"
+
+    # Clear superblocks to make the MD device will not be restarted even if the VM is restarted.
+    # This is a workaround for issue #38240.
+    mdadm -v --zero-superblock --force "${devices[@]}"
+    udevadm settle --timeout=30
+
     # Check if all expected symlinks were removed after the cleanup
     udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
     helper_check_device_units
@@ -1243,6 +1249,12 @@ testcase_mdadm_lvm() {
     # Cleanup
     lvm vgchange -an "$vgroup"
     mdadm -v --stop "$raid_dev"
+
+    # Clear superblocks to make the MD device will not be restarted even if the VM is restarted.
+    # This is a workaround for issue #38240.
+    mdadm -v --zero-superblock --force "${devices[@]}"
+    udevadm settle --timeout=30
+
     # Check if all expected symlinks were removed after the cleanup
     udevadm wait --settle --timeout=30 --removed "${expected_symlinks[@]}"
     helper_check_device_units