diff --git a/gmenu-dbusmenu-proxy/window.cpp b/gmenu-dbusmenu-proxy/window.cpp
index fe8dffc33..101c2d73d 100644
--- a/gmenu-dbusmenu-proxy/window.cpp
+++ b/gmenu-dbusmenu-proxy/window.cpp
@@ -426,7 +426,7 @@ uint Window::GetLayout(int parentId, int recursionDepth, const QStringList &prop
 
     if (!m_currentMenu->hasSubscription(subscription)) {
         // let's serve multiple similar requests in one go once we've processed them
-        m_pendingGetLayouts.insertMulti(subscription, message());
+        m_pendingGetLayouts.insert(subscription, message());
         setDelayedReply(true);
 
         m_currentMenu->start(subscription);
diff --git a/gmenu-dbusmenu-proxy/window.h b/gmenu-dbusmenu-proxy/window.h
index da195464d..2aad53a39 100644
--- a/gmenu-dbusmenu-proxy/window.h
+++ b/gmenu-dbusmenu-proxy/window.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include <QDBusContext>
+#include <QMultiHash>
 #include <QObject>
 #include <QString>
 #include <QVector>
@@ -111,7 +112,7 @@ private:
 
     QString m_proxyObjectPath; // our object path on this proxy app
 
-    QHash<int, QDBusMessage> m_pendingGetLayouts;
+    QMultiHash<int, QDBusMessage> m_pendingGetLayouts;
 
     Menu *m_applicationMenu = nullptr;
     Menu *m_menuBar = nullptr;
diff --git a/libtaskmanager/xwindowtasksmodel.cpp b/libtaskmanager/xwindowtasksmodel.cpp
index 5f70bc065..eb7d47924 100644
--- a/libtaskmanager/xwindowtasksmodel.cpp
+++ b/libtaskmanager/xwindowtasksmodel.cpp
@@ -217,7 +217,7 @@ void XWindowTasksModel::Private::addWindow(WId window)
 
         // Update demands attention state for leader.
         if (info.hasState(NET::DemandsAttention) && windows.contains(leader)) {
-            transientsDemandingAttention.insertMulti(leader, window);
+            transientsDemandingAttention.insert(leader, window);
             dataChanged(leader, QVector<int>{IsDemandingAttention});
         }
 
@@ -279,7 +279,7 @@ void XWindowTasksModel::Private::transientChanged(WId window, NET::Properties pr
 
         if (info.hasState(NET::DemandsAttention)) {
             if (!transientsDemandingAttention.values(leader).contains(window)) {
-                transientsDemandingAttention.insertMulti(leader, window);
+                transientsDemandingAttention.insert(leader, window);
                 dataChanged(leader, QVector<int>{IsDemandingAttention});
             }
         } else if (transientsDemandingAttention.remove(window)) {
@@ -297,7 +297,7 @@ void XWindowTasksModel::Private::transientChanged(WId window, NET::Properties pr
 
                 if (leader != oldLeader) {
                     transientsDemandingAttention.remove(oldLeader, window);
-                    transientsDemandingAttention.insertMulti(leader, window);
+                    transientsDemandingAttention.insert(leader, window);
                     dataChanged(oldLeader, QVector<int>{IsDemandingAttention});
                     dataChanged(leader, QVector<int>{IsDemandingAttention});
                 }