diff --git a/YACReaderLibrary/db/folder_model.cpp b/YACReaderLibrary/db/folder_model.cpp
index b20ff402..288a7dde 100644
--- a/YACReaderLibrary/db/folder_model.cpp
+++ b/YACReaderLibrary/db/folder_model.cpp
@@ -566,7 +566,13 @@ void FolderModelProxy::setFilterData(QMap<unsigned long long, FolderItem *> *fil
 
     rootItem = root;
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+    QMap<unsigned long long, FolderItem *>::iterator i;
+    for (i = filteredItems->begin(); i != filteredItems->end(); ++i)
+        this->filteredItems.insert(i.key(), i.value());
+#else
     this->filteredItems.insert(*filteredItems);
+#endif
 
     endResetModel();