diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,8 +24,7 @@
 set(REQUIRED_QT_VERSION 5.5.0)
 find_package(Qt5 ${REQUIRED_QT_VERSION} CONFIG REQUIRED Widgets DBus X11Extras)
 
-set(KF5_VERSION "5.18.0") # handled by release scripts
-set(KF5_DEP_VERSION "5.17.0") # handled by release scripts
+set(KF5_DEP_VERSION "5.33.0")
 
 find_package(KF5Config ${KF5_DEP_VERSION} REQUIRED)
 find_package(KF5ConfigWidgets ${KF5_DEP_VERSION} REQUIRED)
diff --git a/autotests/kfiledialog_unittest.cpp b/autotests/kfiledialog_unittest.cpp
--- a/autotests/kfiledialog_unittest.cpp
+++ b/autotests/kfiledialog_unittest.cpp
@@ -56,6 +56,24 @@
         QStringList nameFilterList = QStringList() << QStringLiteral("c (*.cpp)") << QStringLiteral("h (*.h)");
         dialog.setNameFilters(nameFilterList);
         QCOMPARE(dialog.nameFilters(), nameFilterList);
+
+        dialog.show();
+        KFileWidget *fw = findFileWidget();
+        QVERIFY(fw);
+        QCOMPARE(fw->currentFilter(), QStringLiteral("*.cpp"));
+    }
+
+    void testSetNameFilterNoParenthesis()
+    {
+        QFileDialog dialog;
+
+        QStringList nameFilterList = QStringList() << QStringLiteral("*.cpp") << QStringLiteral("*.h");
+        dialog.setNameFilters(nameFilterList);
+        QCOMPARE(dialog.nameFilters(), nameFilterList);
+        dialog.show();
+        KFileWidget *fw = findFileWidget();
+        QVERIFY(fw);
+        QCOMPARE(fw->currentFilter(), QStringLiteral("*.cpp"));
     }
 
     void testSelectNameFilter()
diff --git a/src/platformtheme/kdeplatformfiledialoghelper.cpp b/src/platformtheme/kdeplatformfiledialoghelper.cpp
--- a/src/platformtheme/kdeplatformfiledialoghelper.cpp
+++ b/src/platformtheme/kdeplatformfiledialoghelper.cpp
@@ -61,13 +61,15 @@
         int ob = it->lastIndexOf(QLatin1Char('(')),
             cb = it->lastIndexOf(QLatin1Char(')'));
 
+        if (first) {
+            first = false;
+        } else {
+            str << '\n';
+        }
         if (-1 != cb && ob < cb) {
-            if (first) {
-                first = false;
-            } else {
-                str << '\n';
-            }
             str << it->mid(ob + 1, (cb - ob) - 1) << '|' << it->mid(0, ob);
+        } else {
+            str << (*it);
         }
     }
 
@@ -127,7 +129,7 @@
 {
     QUrl dirUrl = filename.adjusted(QUrl::RemoveFilename);
     m_fileWidget->setUrl(dirUrl);
-    m_fileWidget->setSelection(filename.toString());
+    m_fileWidget->setSelectedUrl(filename);
 }
 
 void KDEPlatformFileDialog::setViewMode(QFileDialogOptions::ViewMode view)
@@ -224,7 +226,7 @@
             if (!entry.isDir()) {
                 // this is probably a file remove the file part
                 m_fileWidget->setUrl(directory.adjusted(QUrl::RemoveFilename));
-                m_fileWidget->setSelection(directory.fileName());
+                m_fileWidget->setSelectedUrl(directory);
             }
             else {
                 m_fileWidget->setUrl(directory);