diff --git a/src/contentmanagermodel.cpp b/src/contentmanagermodel.cpp
index 98110eb..05e57c7 100644
--- a/src/contentmanagermodel.cpp
+++ b/src/contentmanagermodel.cpp
@@ -110,20 +110,6 @@ void ContentManagerModel::setBooksData(const BookInfoList& data)
     emit dataChanged(QModelIndex(), QModelIndex());
 }
 
-QString convertToUnits(QString size)
-{
-    QStringList units = {"bytes", "KB", "MB", "GB", "TB", "PB", "EB"};
-    int unitIndex = 0;
-    auto bytes = size.toDouble();
-    while (bytes >= 1024 && unitIndex < units.size()) {
-        bytes /= 1024;
-        unitIndex++;
-    }
-
-    const auto preciseBytes = QString::number(bytes, 'g', 3);
-    return preciseBytes + " " + units[unitIndex];
-}
-
 std::shared_ptr<RowNode> ContentManagerModel::createNode(BookInfo bookItem, QMap<QString, QByteArray> iconMap) const
 {
     auto faviconUrl = "https://" + bookItem["faviconUrl"].toString();
@@ -254,19 +240,9 @@ void ContentManagerModel::startDownload(QModelIndex index)
 {
     auto node = getSharedPointer(static_cast<RowNode*>(index.internalPointer()));
     node->setIsDownloading(true); // this starts the internal timer
-    auto id = node->getBookId();
     QTimer *timer = node->getDownloadUpdateTimer();
     connect(timer, &QTimer::timeout, this, [=]() {
-        auto downloadInfos = KiwixApp::instance()->getContentManager()->updateDownloadInfos(id, {"status", "completedLength", "totalLength", "downloadSpeed"});
-        double percent = downloadInfos["completedLength"].toDouble() / downloadInfos["totalLength"].toDouble();
-        percent *= 100;
-        percent = QString::number(percent, 'g', 3).toDouble();
-        auto completedLength = convertToUnits(downloadInfos["completedLength"].toString());
-        auto downloadSpeed = convertToUnits(downloadInfos["downloadSpeed"].toString()) + "/s";
-        node->setDownloadInfo({percent, completedLength, downloadSpeed, false});
-        if (!downloadInfos["status"].isValid()) {
-            node->setIsDownloading(false); // this stops & deletes the timer
-        }
+        node->updateDownloadStatus();
         emit dataChanged(index, index);
     });
 }
diff --git a/src/rownode.cpp b/src/rownode.cpp
index 09f076c..3f8da3d 100644
--- a/src/rownode.cpp
+++ b/src/rownode.cpp
@@ -91,3 +91,37 @@ void RowNode::setIsDownloading(bool val)
         m_downloadUpdateTimer.reset();
     }
 }
+
+namespace
+{
+
+QString convertToUnits(QString size)
+{
+    QStringList units = {"bytes", "KB", "MB", "GB", "TB", "PB", "EB"};
+    int unitIndex = 0;
+    auto bytes = size.toDouble();
+    while (bytes >= 1024 && unitIndex < units.size()) {
+        bytes /= 1024;
+        unitIndex++;
+    }
+
+    const auto preciseBytes = QString::number(bytes, 'g', 3);
+    return preciseBytes + " " + units[unitIndex];
+}
+
+} // unnamed namespace
+
+void RowNode::updateDownloadStatus()
+{
+    const auto id = getBookId();
+    auto downloadInfos = KiwixApp::instance()->getContentManager()->updateDownloadInfos(id, {"status", "completedLength", "totalLength", "downloadSpeed"});
+    double percent = downloadInfos["completedLength"].toDouble() / downloadInfos["totalLength"].toDouble();
+    percent *= 100;
+    percent = QString::number(percent, 'g', 3).toDouble();
+    auto completedLength = convertToUnits(downloadInfos["completedLength"].toString());
+    auto downloadSpeed = convertToUnits(downloadInfos["downloadSpeed"].toString()) + "/s";
+    setDownloadInfo({percent, completedLength, downloadSpeed, false});
+    if (!downloadInfos["status"].isValid()) {
+        setIsDownloading(false); // this stops & deletes the timer
+    }
+}
diff --git a/src/rownode.h b/src/rownode.h
index 23e68d3..d8a493f 100644
--- a/src/rownode.h
+++ b/src/rownode.h
@@ -35,6 +35,8 @@ public:
     void setIsDownloading(bool val);
     bool isChild(Node* candidate);
 
+    void updateDownloadStatus();
+
 private:
     QList<QVariant> m_itemData;
     QList<std::shared_ptr<Node>> m_childItems;