diff --git a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
index e3d55f45102..0b7b7a65e19 100644
--- a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
+++ b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
@@ -213,6 +213,9 @@ void QXdgDesktopPortalFileDialog::openPortal(Qt::WindowFlags windowFlags, Qt::Wi
             filter.name = mimeType.comment();
             filter.filterConditions = filterConditions;
 
+            if (filter.name.isEmpty())
+                filter.name = mimeTypefilter;
+
             filterList << filter;
 
             if (!d->selectedMimeTypeFilter.isEmpty() && d->selectedMimeTypeFilter == mimeTypefilter)