diff --git a/src/widgets/kpropertiesdialog.cpp b/src/widgets/kpropertiesdialog.cpp
--- a/src/widgets/kpropertiesdialog.cpp
+++ b/src/widgets/kpropertiesdialog.cpp
@@ -1106,10 +1106,13 @@
         sizelay->addWidget(d->m_sizeDetermineButton, 0);
         sizelay->addWidget(d->m_sizeStopButton, 0);
 
-        if (!QStandardPaths::findExecutable(QStringLiteral("filelight")).isEmpty()) {
+        KService::Ptr service = KService::serviceByDesktopName(QStringLiteral("org.kde.filelight"));
+
+        if (service) {
             d->m_sizeDetailsButton = new QPushButton(i18n("Explore in Filelight"), d->m_frame);
-            d->m_sizeDetailsButton->setIcon(QIcon::fromTheme(QStringLiteral("filelight")));
-            connect(d->m_sizeDetailsButton, &QPushButton::clicked, this, &KFilePropsPlugin::slotSizeDetails);
+            d->m_sizeDetailsButton->setIcon(QIcon::fromTheme(service->icon()));
+            connect(d->m_sizeDetailsButton, &QPushButton::clicked, this, [this, service]() {
+            KRun::runApplication(*service, { properties->url() }, properties->window());});
             sizelay->addWidget(d->m_sizeDetailsButton, 0);
         }
 
@@ -1447,12 +1450,6 @@
     d->m_sizeDetermineButton->setEnabled(true);
 }
 
-void KFilePropsPlugin::slotSizeDetails()
-{
-    // Open the current folder in filelight
-    KRun::run((QStandardPaths::findExecutable(QStringLiteral("filelight"))), { properties->url() }, properties->window(), QStringLiteral("Filelight"), QStringLiteral("filelight"));
-}
-
 KFilePropsPlugin::~KFilePropsPlugin()
 {
     delete d;
diff --git a/src/widgets/kpropertiesdialog_p.h b/src/widgets/kpropertiesdialog_p.h
--- a/src/widgets/kpropertiesdialog_p.h
+++ b/src/widgets/kpropertiesdialog_p.h
@@ -81,7 +81,6 @@
     void slotFreeSpaceResult(KIO::Job *job, KIO::filesize_t size, KIO::filesize_t available);
     void slotSizeStop();
     void slotSizeDetermine();
-    void slotSizeDetails();
 
 Q_SIGNALS:
     void leaveModality();