diff --git a/wayland_server.h b/wayland_server.h
--- a/wayland_server.h
+++ b/wayland_server.h
@@ -60,7 +60,6 @@
 class PlasmaShellSurfaceInterface;
 class PlasmaVirtualDesktopManagementInterface;
 class PlasmaWindowManagementInterface;
-class QtSurfaceExtensionInterface;
 class OutputManagementInterface;
 class OutputConfigurationInterface;
 class XdgDecorationManagerInterface;
diff --git a/wayland_server.cpp b/wayland_server.cpp
--- a/wayland_server.cpp
+++ b/wayland_server.cpp
@@ -51,7 +51,6 @@
 #include <KWaylandServer/plasmawindowmanagement_interface.h>
 #include <KWaylandServer/pointerconstraints_interface.h>
 #include <KWaylandServer/pointergestures_interface.h>
-#include <KWaylandServer/qtsurfaceextension_interface.h>
 #include <KWaylandServer/seat_interface.h>
 #include <KWaylandServer/server_decoration_interface.h>
 #include <KWaylandServer/server_decoration_palette_interface.h>
diff --git a/xdgshellclient.cpp b/xdgshellclient.cpp
--- a/xdgshellclient.cpp
+++ b/xdgshellclient.cpp
@@ -42,7 +42,6 @@
 #include <KWaylandServer/display.h>
 #include <KWaylandServer/plasmashell_interface.h>
 #include <KWaylandServer/plasmawindowmanagement_interface.h>
-#include <KWaylandServer/qtsurfaceextension_interface.h>
 #include <KWaylandServer/seat_interface.h>
 #include <KWaylandServer/server_decoration_interface.h>
 #include <KWaylandServer/server_decoration_palette_interface.h>