diff --git a/src/klauncher/klauncher.cpp b/src/klauncher/klauncher.cpp
--- a/src/klauncher/klauncher.cpp
+++ b/src/klauncher/klauncher.cpp
@@ -988,7 +988,7 @@
     arg_list << mConnectionServer.address().toString();
     arg_list << app_socket;
 #ifdef Q_OS_WIN
-    QString name = QLatin1String("kioslave");
+    QString name = QLatin1String("kioslave5");
 #else
     QString name = QFile::decodeName(CMAKE_INSTALL_FULL_LIBEXECDIR_KF5 "/kioslave");
 #endif
@@ -1018,7 +1018,7 @@
         arg_list.prepend(name);
 #ifndef USE_KPROCESS_FOR_KIOSLAVES // otherwise we've already done this
 #ifdef Q_OS_WIN
-        arg_list.prepend(QLatin1String("kioslave"));
+        arg_list.prepend(QLatin1String("kioslave5"));
 #else
         arg_list.prepend(QFile::decodeName(CMAKE_INSTALL_FULL_LIBEXECDIR_KF5 "/kioslave"));
 #endif