diff --git a/app/src/BooksBookModel.cpp b/app/src/BooksBookModel.cpp
index d563216..c7e31b2 100644
--- a/app/src/BooksBookModel.cpp
+++ b/app/src/BooksBookModel.cpp
@@ -1,6 +1,6 @@
 /*
- * Copyright (C) 2015-2021 Jolla Ltd.
- * Copyright (C) 2015-2021 Slava Monich <slava.monich@jolla.com>
+ * Copyright (C) 2015-2023 Slava Monich <slava@monich.com>
+ * Copyright (C) 2015-2022 Jolla Ltd.
  *
  * You may use this file under the terms of the BSD license as follows:
  *
@@ -8,27 +8,25 @@
  * modification, are permitted provided that the following conditions
  * are met:
  *
- *   1. Redistributions of source code must retain the above copyright
- *      notice, this list of conditions and the following disclaimer.
- *   2. Redistributions in binary form must reproduce the above copyright
- *      notice, this list of conditions and the following disclaimer
- *      in the documentation and/or other materials provided with the
- *      distribution.
- *   3. Neither the names of the copyright holders nor the names of its
- *      contributors may be used to endorse or promote products derived
- *      from this software without specific prior written permission.
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer
+ *     in the documentation and/or other materials provided with the
+ *     distribution.
+ *  3. Neither the names of the copyright holders nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING
+ * IN ANY WAY OUT OF THE USE OR INABILITY TO USE THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "BooksBookModel.h"
@@ -153,7 +151,7 @@ BooksPos::List BooksBookModel::PagingTask::loadPageMarks() const
         uchar* map = file.map(0, size);
         if (map) {
             HDEBUG("reading" << qPrintable(iPageMarksFile));
-            if (size > sizeof(MarksHeader)) {
+            if (size > (int) sizeof(MarksHeader)) {
                 const qint64 dataSize = size - sizeof(MarksHeader);
                 const MarksHeader* hdr = (MarksHeader*)map;
                 if (!memcmp(hdr->magic, MarksFileMagic, sizeof(hdr->magic)) &&