diff --git a/src/platformtheme/kdeplatformtheme.cpp b/src/platformtheme/kdeplatformtheme.cpp
--- a/src/platformtheme/kdeplatformtheme.cpp
+++ b/src/platformtheme/kdeplatformtheme.cpp
@@ -395,12 +395,8 @@
 //force QtQuickControls2 to use the desktop theme as default
 void KdePlatformTheme::setQtQuickControlsTheme()
 {
-    //if the user is running only a QGuiApplication, explicitely unset the QQC1 desktop style and abort
-    //as this style is all about QWidgets and we know setting this will make it crash
+    //if the user is running only a QGuiApplication, abort as this style is all about QWidgets and we know setting this will make it crash
     if (!qobject_cast<QApplication*>(qApp)) {
-        if (qgetenv("QT_QUICK_CONTROLS_1_STYLE").right(7) == "Desktop") {
-            qunsetenv("QT_QUICK_CONTROLS_1_STYLE");
-        }
         return;
     }
     //if the user has explicitly set something else, don't meddle