diff --git a/applets/icon/CMakeLists.txt b/applets/icon/CMakeLists.txt
--- a/applets/icon/CMakeLists.txt
+++ b/applets/icon/CMakeLists.txt
@@ -13,8 +13,8 @@
                       KF5::KIOCore # for OpenFileManagerWindowJob
                       KF5::KIOGui # for FavIconRequestJob
                       KF5::KIOWidgets # for KRun
-                      KF5::WindowSystem # for KStartupInfo
-                      KF5::Plasma)
+                      KF5::Plasma
+                      PW::LibTaskManager)
 
 install(TARGETS plasma_applet_icon DESTINATION ${KDE_INSTALL_PLUGINDIR}/plasma/applets)
 
diff --git a/applets/icon/iconapplet.h b/applets/icon/iconapplet.h
--- a/applets/icon/iconapplet.h
+++ b/applets/icon/iconapplet.h
@@ -32,6 +32,11 @@
 
 class QMenu;
 
+namespace TaskManager
+{
+class StartupTasksModel;
+}
+
 class IconApplet : public Plasma::Applet
 {
     Q_OBJECT
@@ -102,6 +107,6 @@
 
     QPointer<KPropertiesDialog> m_configDialog;
 
-    KStartupInfo *m_startupInfo = nullptr;
+    TaskManager::StartupTasksModel *m_startupTasksModel = nullptr;
 
 };
diff --git a/applets/icon/iconapplet.cpp b/applets/icon/iconapplet.cpp
--- a/applets/icon/iconapplet.cpp
+++ b/applets/icon/iconapplet.cpp
@@ -42,13 +42,14 @@
 #include <KLocalizedString>
 #include <KProtocolManager>
 #include <KRun>
-#include <KStartupInfo>
 
 #include <KIO/DropJob>
 #include <KIO/FavIconRequestJob>
 #include <KIO/OpenFileManagerWindowJob>
 #include <KIO/StatJob>
 
+#include <startuptasksmodel.h>
+
 IconApplet::IconApplet(QObject *parent, const QVariantList &data)
     : Plasma::Applet(parent, data)
 {
@@ -394,25 +395,23 @@
 
 void IconApplet::run()
 {
-    if (!m_startupInfo) {
-        m_startupInfo = new KStartupInfo(KStartupInfo::CleanOnCantDetect, this);
-
-        const KConfig klaunchrc("klaunchrc");
-        KConfigGroup c = KConfigGroup(&klaunchrc, "TaskbarButtonSettings");
-        m_startupInfo->setTimeout(c.readEntry("Timeout", 5));
-
-        connect(m_startupInfo, &KStartupInfo::gotNewStartup, this, [this](const KStartupInfoId &id, const KStartupInfoData &data) {
-            Q_UNUSED(id);
-            if (data.applicationId() == m_localPath) {
-                setBusy(true);
-            }
-        });
-        connect(m_startupInfo, &KStartupInfo::gotRemoveStartup, this, [this](const KStartupInfoId &id, const KStartupInfoData &data) {
-            Q_UNUSED(id);
-            if (data.applicationId() == m_localPath) {
-                setBusy(false);
+    if (!m_startupTasksModel) {
+        m_startupTasksModel = new TaskManager::StartupTasksModel(this);
+
+        auto handleRow = [this](bool busy, const QModelIndex &parent, int first, int last) {
+            Q_UNUSED(parent);
+            for (int i = first; i <= last; ++i) {
+                const QModelIndex idx = m_startupTasksModel->index(i, 0);
+                if (idx.data(TaskManager::AbstractTasksModel::LauncherUrlWithoutIcon).toUrl() == QUrl::fromLocalFile(m_localPath)) {
+                    setBusy(busy);
+                    break;
+                }
             }
-        });
+        };
+
+        using namespace std::placeholders;
+        connect(m_startupTasksModel, &QAbstractItemModel::rowsInserted, this, std::bind(handleRow, true /*busy*/, _1, _2, _3));
+        connect(m_startupTasksModel, &QAbstractItemModel::rowsAboutToBeRemoved, this, std::bind(handleRow, false /*busy*/, _1, _2, _3));
     }
 
     new KRun(QUrl::fromLocalFile(m_localPath), QApplication::desktop());