diff --git a/src/drive/permissionmodifyjob.cpp b/src/drive/permissionmodifyjob.cpp
index 4b8d8d8..e6ac537 100644
--- a/src/drive/permissionmodifyjob.cpp
+++ b/src/drive/permissionmodifyjob.cpp
@@ -1,191 +1,191 @@
 /*
  * This file is part of LibKGAPI library
  *
  * Copyright (C) 2013  Daniel Vrátil <dvratil@redhat.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) version 3, or any
  * later version accepted by the membership of KDE e.V. (or its
  * successor approved by the membership of KDE e.V.), which shall
  * act as a proxy defined in Section 6 of version 3 of the license.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 
 #include "permissionmodifyjob.h"
 #include "account.h"
 #include "driveservice.h"
 #include "permission.h"
 #include "utils.h"
 
 #include <QNetworkRequest>
 #include <QNetworkReply>
 #include <QUrlQuery>
 
 
 using namespace KGAPI2;
 using namespace KGAPI2::Drive;
 
 namespace {
     static constexpr bool removeExpirationDefault = false;
     static constexpr bool transferOwnershipDefault = false;
     static constexpr bool useDomainAdminAccessDefault = false;
 }
 
 class Q_DECL_HIDDEN PermissionModifyJob::Private
 {
   public:
     Private(PermissionModifyJob *parent);
     void processNext();
 
     QString fileId;
     PermissionsList permissions;
     bool supportsAllDrives;
     bool removeExpiration;
     bool transferOwnership;
     bool useDomainAdminAccess;
 
   private:
     PermissionModifyJob *q;
 };
 
 PermissionModifyJob::Private::Private(PermissionModifyJob *parent):
     supportsAllDrives(true),
     removeExpiration(removeExpirationDefault),
     transferOwnership(transferOwnershipDefault),
     useDomainAdminAccess(useDomainAdminAccessDefault),
     q(parent)
 {
 }
 
 void PermissionModifyJob::Private::processNext()
 {
     if (permissions.isEmpty()) {
         q->emitFinished();
         return;
     }
 
     const PermissionPtr permission = permissions.takeFirst();
     QUrl url = DriveService::modifyPermissionUrl(fileId, permission->id());
 
     QUrlQuery query(url);
     query.addQueryItem(QStringLiteral("supportsAllDrives"), Utils::bool2Str(supportsAllDrives));
 
     if (removeExpiration != removeExpirationDefault) {
         query.addQueryItem(QStringLiteral("removeExpiration"), Utils::bool2Str(removeExpiration));
     }
 
-    if (!transferOwnership != transferOwnershipDefault) {
+    if (transferOwnership != transferOwnershipDefault) {
         query.addQueryItem(QStringLiteral("transferOwnership"), Utils::bool2Str(transferOwnership));
     }
 
-    if (!useDomainAdminAccess != useDomainAdminAccessDefault) {
+    if (useDomainAdminAccess != useDomainAdminAccessDefault) {
         query.addQueryItem(QStringLiteral("useDomainAdminAccess"), Utils::bool2Str(useDomainAdminAccess));
     }
 
     url.setQuery(query);
     QNetworkRequest request(url);
 
     const QByteArray rawData = Permission::toJSON(permission);
     q->enqueueRequest(request, rawData, QStringLiteral("application/json"));
 }
 
 PermissionModifyJob::PermissionModifyJob(const QString &fileId,
                                          const PermissionPtr &permission,
                                          const AccountPtr &account,
                                          QObject *parent):
     ModifyJob(account, parent),
     d(new Private(this))
 {
     d->fileId = fileId;
     d->permissions << permission;
 }
 
 PermissionModifyJob::PermissionModifyJob(const QString &fileId,
                                          const PermissionsList &permissions,
                                          const AccountPtr &account,
                                          QObject *parent):
     ModifyJob(account, parent),
     d(new Private(this))
 {
     d->fileId = fileId;
     d->permissions << permissions;
 }
 
 PermissionModifyJob::~PermissionModifyJob() = default;
 
 bool PermissionModifyJob::removeExpiration() const
 {
     return d->removeExpiration;
 }
 
 void PermissionModifyJob::setRemoveExpiration(bool removeExpiration)
 {
     d->removeExpiration = removeExpiration;
 }
 
 bool PermissionModifyJob::supportsAllDrives() const
 {
     return d->supportsAllDrives;
 }
 
 void PermissionModifyJob::setSupportsAllDrives(bool supportsAllDrives)
 {
     d->supportsAllDrives = supportsAllDrives;
 }
 
 bool PermissionModifyJob::transferOwnership() const
 {
     return d->transferOwnership;
 }
 
 void PermissionModifyJob::setTransferOwnership(bool transferOwnership)
 {
     d->transferOwnership = transferOwnership;
 }
 
 bool PermissionModifyJob::useDomainAdminAccess() const
 {
     return d->useDomainAdminAccess;
 }
 
 void PermissionModifyJob::setUseDomainAdminAccess(bool useDomainAdminAccess)
 {
     d->useDomainAdminAccess = useDomainAdminAccess;
 }
 
 void PermissionModifyJob::start()
 {
     d->processNext();
 }
 
 ObjectsList PermissionModifyJob::handleReplyWithItems(const QNetworkReply *reply,
         const QByteArray &rawData)
 {
     const QString contentType = reply->header(QNetworkRequest::ContentTypeHeader).toString();
     ContentType ct = Utils::stringToContentType(contentType);
     ObjectsList items;
     if (ct == KGAPI2::JSON) {
         items << Permission::fromJSON(rawData);
     } else {
         setError(KGAPI2::InvalidResponse);
         setErrorString(tr("Invalid response content type"));
         emitFinished();
     }
 
     // Enqueue next item or finish
     d->processNext();
 
     return items;
 }