diff --git a/runners/activities/activityrunner.cpp b/runners/activities/activityrunner.cpp
--- a/runners/activities/activityrunner.cpp
+++ b/runners/activities/activityrunner.cpp
@@ -158,7 +158,7 @@
     Plasma::QueryMatch match(this);
     match.setData(activity.id());
     match.setType(Plasma::QueryMatch::ExactMatch);
-    match.setIconName(activity.icon().isEmpty() ? QStringLiteral("preferences-activities") : activity.icon());
+    match.setIconName(activity.icon().isEmpty() ? QStringLiteral("activities") : activity.icon());
     match.setText(i18n("Switch to \"%1\"", activity.name()));
     match.setRelevance(0.7 + ((activity.state() == KActivities::Info::Running ||
                                activity.state() == KActivities::Info::Starting) ? 0.1 : 0));
diff --git a/shell/shellcorona.cpp b/shell/shellcorona.cpp
--- a/shell/shellcorona.cpp
+++ b/shell/shellcorona.cpp
@@ -174,7 +174,7 @@
     connect(activityAction, &QAction::triggered,
             this, &ShellCorona::toggleActivityManager);
     activityAction->setText(i18n("Activities..."));
-    activityAction->setIcon(QIcon::fromTheme(QStringLiteral("preferences-activities")));
+    activityAction->setIcon(QIcon::fromTheme(QStringLiteral("activities")));
     activityAction->setData(Plasma::Types::ConfigureAction);
     activityAction->setShortcut(QKeySequence(QStringLiteral("alt+d, alt+a")));
     activityAction->setShortcutContext(Qt::ApplicationShortcut);