diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 4d3a8868b2..e521bd3982 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -9491,10 +9491,10 @@ qemuDomainStorageSourceAccessAllow(virQEMUDriverPtr driver,
     qemuDomainStorageSourceAccessFlags flags = QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_SKIP_REVOKE;
 
     if (readonly)
-        flags &= QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_READ_ONLY;
+        flags |= QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_READ_ONLY;
 
     if (!newSource)
-        flags &= QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_MODIFY_ACCESS;
+        flags |= QEMU_DOMAIN_STORAGE_SOURCE_ACCESS_MODIFY_ACCESS;
 
     return qemuDomainStorageSourceAccessModify(driver, vm, elem, flags);
 }