diff --git a/src/pluginwrapper.cpp b/src/pluginwrapper.cpp
index 8e6298a..210989a 100644
--- a/src/pluginwrapper.cpp
+++ b/src/pluginwrapper.cpp
@@ -37,14 +37,10 @@ Q_GLOBAL_STATIC(KWindowSystemPluginWrapper, s_pluginWrapper)
 static QStringList pluginCandidates()
 {
     QStringList ret;
-    foreach (const QString &path, QCoreApplication::libraryPaths()) {
-        QDir pluginDir(path + QLatin1String("/kf5/org.kde.kwindowsystem.platforms"));
-        if (!pluginDir.exists()) {
-            continue;
-        }
-        foreach (const QString &entry, pluginDir.entryList(QDir::Files | QDir::NoDotAndDotDot)) {
-            ret << pluginDir.absoluteFilePath(entry);
-        }
+    QDir pluginDir(QLatin1String(NIXPKGS_QT_PLUGIN_PATH) + QLatin1Literal("/kf5/org.kde.kwindowsystem.platforms"));
+    const auto entries = pluginDir.entryList(QDir::Files | QDir::NoDotAndDotDot);
+    for (const QString &entry : entries) {
+        ret << pluginDir.absoluteFilePath(entry);
     }
     return ret;
 }