diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index 0bedd1554f2f6708479c6c10656422ffe26e874d..cc421b7ae166c4ffe6a005c73b3f2714a36db2b9 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -239,6 +239,7 @@ static ssize_t cm_write(struct file *file, const char __user *user_buf,
 		kfree(buf);
 		if (ACPI_FAILURE(status))
 			return -EINVAL;
+		add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
 	}
 
 	return count;