--- gwenview-25.04.3.orig/lib/semanticinfo/sorteddirmodel.cpp
+++ gwenview-25.04.3/lib/semanticinfo/sorteddirmodel.cpp
@@ -266,6 +266,27 @@ void SortedDirModel::doApplyFilters()
     QSortFilterProxyModel::invalidateFilter();
 }
 
+static void stringToWCharArray(QVarLengthArray<wchar_t> &ret, QStringView string)
+{
+    ret.resize(string.length());
+    qsizetype len = string.toWCharArray(ret.data());
+    ret.resize(len+1);
+    ret[len] = 0;
+}
+
+static int lcompare(QStringView s1, QStringView s2)
+{
+    if (!s1.size())
+        return s2.size() ? -1 : 0;
+    if (!s2.size())
+        return +1;
+
+    QVarLengthArray<wchar_t> array1, array2;
+    stringToWCharArray(array1, s1);
+    stringToWCharArray(array2, s2);
+    return std::wcscoll(array1.constData(), array2.constData());
+}
+
 bool SortedDirModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
 {
     const KFileItem leftItem = itemForSourceIndex(left);
@@ -277,6 +298,10 @@ bool SortedDirModel::lessThan(const QMod
     if (leftIsDirOrArchive != rightIsDirOrArchive) {
         return sortOrder() == Qt::AscendingOrder ? leftIsDirOrArchive : rightIsDirOrArchive;
     }
+    
+    if (sortColumn() == KDirModel::Name) {
+        return lcompare(leftItem.name(), rightItem.name()) < 0;
+    }
 
     // Apply special sort handling only to images. For folders/archives or when
     // a secondary criterion is needed, delegate sorting to the parent class.