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-rw-r--r--tests/qtest/boot-sector.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/qtest/boot-sector.c b/tests/qtest/boot-sector.c
index d3f68018e7..679ee17e2a 100644
--- a/tests/qtest/boot-sector.c
+++ b/tests/qtest/boot-sector.c
@@ -153,6 +153,8 @@ void boot_sector_test(QTestState *qts)
signature_high = qtest_readb(qts, SIGNATURE_ADDR + 1);
signature = (signature_high << 8) | signature_low;
if (signature == SIGNATURE) {
+ /* wipe signature */
+ qtest_writeb(qts, SIGNATURE_ADDR, 0x00);
break;
}