diff --git a/abstract_client.h b/abstract_client.h
--- a/abstract_client.h
+++ b/abstract_client.h
@@ -385,7 +385,7 @@
     virtual bool isShadeable() const;
     virtual bool isMaximizable() const = 0;
     virtual bool isMinimizable() const = 0;
-    virtual QRect iconGeometry() const = 0;
+    virtual QRect iconGeometry() const;
     virtual bool userCanSetFullScreen() const = 0;
     virtual bool userCanSetNoBorder() const = 0;
     virtual void setOnAllActivities(bool set) = 0;
diff --git a/abstract_client.cpp b/abstract_client.cpp
--- a/abstract_client.cpp
+++ b/abstract_client.cpp
@@ -1598,4 +1598,33 @@
     // TODO: handle Options::FocusStrictlyUnderMouse
 }
 
+QRect AbstractClient::iconGeometry() const
+{
+    if (!windowManagementInterface() || !waylandServer()) {
+        // window management interface is only available if the surface is mapped
+        return QRect();
+    }
+
+    int minDistance = INT_MAX;
+    AbstractClient *candidatePanel = nullptr;
+    QRect candidateGeom;
+
+    for (auto i = windowManagementInterface()->minimizedGeometries().constBegin(), end = windowManagementInterface()->minimizedGeometries().constEnd(); i != end; ++i) {
+        AbstractClient *client = waylandServer()->findAbstractClient(i.key());
+        if (!client) {
+            continue;
+        }
+        const int distance = QPoint(client->pos() - pos()).manhattanLength();
+        if (distance < minDistance) {
+            minDistance = distance;
+            candidatePanel = client;
+            candidateGeom = i.value();
+        }
+    }
+    if (!candidatePanel) {
+        return QRect();
+    }
+    return candidateGeom.translated(candidatePanel->pos());
+}
+
 }
diff --git a/client.cpp b/client.cpp
--- a/client.cpp
+++ b/client.cpp
@@ -737,7 +737,7 @@
                 return geom;
         }
         // No mainwindow (or their parents) with icon geometry was found
-        return QRect();
+        return AbstractClient::iconGeometry();
     }
 }
 
diff --git a/shell_client.h b/shell_client.h
--- a/shell_client.h
+++ b/shell_client.h
@@ -69,7 +69,6 @@
     bool isFullScreen() const override;
     bool isMaximizable() const override;
     bool isMinimizable() const override;
-    QRect iconGeometry() const override;
     bool isMovable() const override;
     bool isMovableAcrossScreens() const override;
     bool isResizable() const override;
diff --git a/shell_client.cpp b/shell_client.cpp
--- a/shell_client.cpp
+++ b/shell_client.cpp
@@ -581,35 +581,6 @@
     return (!m_plasmaShellSurface || m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Normal);
 }
 
-QRect ShellClient::iconGeometry() const
-{
-    if (!windowManagementInterface()) {
-        // window management interface is only available if the surface is mapped
-        return QRect();
-    }
-
-    int minDistance = INT_MAX;
-    ShellClient *candidatePanel = nullptr;
-    QRect candidateGeom;
-
-    for (auto i = windowManagementInterface()->minimizedGeometries().constBegin(), end = windowManagementInterface()->minimizedGeometries().constEnd(); i != end; ++i) {
-        ShellClient *client = waylandServer()->findClient(i.key());
-        if (!client) {
-            continue;
-        }
-        const int distance = QPoint(client->pos() - pos()).manhattanLength();
-        if (distance < minDistance) {
-            minDistance = distance;
-            candidatePanel = client;
-            candidateGeom = i.value();
-        }
-    }
-    if (!candidatePanel) {
-        return QRect();
-    }
-    return candidateGeom.translated(candidatePanel->pos());
-}
-
 bool ShellClient::isMovable() const
 {
     if (m_plasmaShellSurface) {
diff --git a/wayland_server.h b/wayland_server.h
--- a/wayland_server.h
+++ b/wayland_server.h
@@ -108,6 +108,7 @@
     void removeClient(ShellClient *c);
     ShellClient *findClient(quint32 id) const;
     ShellClient *findClient(KWayland::Server::SurfaceInterface *surface) const;
+    AbstractClient *findAbstractClient(KWayland::Server::SurfaceInterface *surface) const;
     ShellClient *findClient(QWindow *w) const;
 
     /**
diff --git a/wayland_server.cpp b/wayland_server.cpp
--- a/wayland_server.cpp
+++ b/wayland_server.cpp
@@ -561,6 +561,11 @@
     return nullptr;
 }
 
+AbstractClient *WaylandServer::findAbstractClient(SurfaceInterface *surface) const
+{
+    return findClient(surface);
+}
+
 ShellClient *WaylandServer::findClient(QWindow *w) const
 {
     if (!w) {