diff --git a/mkspecs/features/qml_plugin.prf b/mkspecs/features/qml_plugin.prf
index e7996feb9b9..7bd77179e31 100644
--- a/mkspecs/features/qml_plugin.prf
+++ b/mkspecs/features/qml_plugin.prf
@@ -18,10 +18,6 @@ if(win32|mac):!macx-xcode {
     contains(QT_CONFIG, debug_and_release):CONFIG += debug_and_release
     contains(QT_CONFIG, build_all):CONFIG += build_all
 }
-contains(QT_CONFIG, reduce_exports):CONFIG += hide_symbols
-contains(QT_CONFIG, separate_debug_info):CONFIG += separate_debug_info
-contains(QT_CONFIG, separate_debug_info_nocopy):CONFIG += separate_debug_info_nocopy
-contains(QT_CONFIG, c++11):CONFIG += c++11
 
 isEmpty(CXX_MODULE) {
     CXX_MODULE = $$TARGET