diff --git a/src/libkwineffects/effect.cpp b/src/libkwineffects/effect.cpp
index 765331e230..b3a963073d 100644
--- a/src/libkwineffects/effect.cpp
+++ b/src/libkwineffects/effect.cpp
@@ -497,16 +497,6 @@ int Effect::requestedEffectChainPosition() const
     return 0;
 }
 
-xcb_connection_t *Effect::xcbConnection() const
-{
-    return effects->xcbConnection();
-}
-
-xcb_window_t Effect::x11RootWindow() const
-{
-    return effects->x11RootWindow();
-}
-
 bool Effect::touchDown(qint32 id, const QPointF &pos, std::chrono::microseconds time)
 {
     return false;
diff --git a/src/libkwineffects/effect.h b/src/libkwineffects/effect.h
index 1a5a04502a..e28e246110 100644
--- a/src/libkwineffects/effect.h
+++ b/src/libkwineffects/effect.h
@@ -16,8 +16,6 @@
 #include <KPluginFactory>
 #include <KSharedConfig>
 
-#include <xcb/xcb.h> // FIXME: drop it
-
 class QKeyEvent;
 class QTabletEvent;
 
@@ -928,9 +926,6 @@ public Q_SLOTS:
     virtual bool borderActivated(ElectricBorder border);
 
 protected:
-    xcb_connection_t *xcbConnection() const;
-    xcb_window_t x11RootWindow() const;
-
     /**
      * An implementing class can call this with it's kconfig compiled singleton class.
      * This method will perform the instance on the class.
diff --git a/src/plugins/kscreen/kscreen.cpp b/src/plugins/kscreen/kscreen.cpp
index 5b288fdd05..968c3b72a5 100644
--- a/src/plugins/kscreen/kscreen.cpp
+++ b/src/plugins/kscreen/kscreen.cpp
@@ -202,7 +202,7 @@ void KscreenEffect::switchState(ScreenState &state)
         value = 0l;
     }
     if (value != -1l && m_atom != XCB_ATOM_NONE) {
-        xcb_change_property(xcbConnection(), XCB_PROP_MODE_REPLACE, x11RootWindow(), m_atom, XCB_ATOM_CARDINAL, 32, 1, &value);
+        xcb_change_property(effects->xcbConnection(), XCB_PROP_MODE_REPLACE, effects->x11RootWindow(), m_atom, XCB_ATOM_CARDINAL, 32, 1, &value);
     }
 }
 
diff --git a/src/plugins/startupfeedback/startupfeedback.cpp b/src/plugins/startupfeedback/startupfeedback.cpp
index d7be40c12c..82ce653770 100644
--- a/src/plugins/startupfeedback/startupfeedback.cpp
+++ b/src/plugins/startupfeedback/startupfeedback.cpp
@@ -82,7 +82,7 @@ StartupFeedbackEffect::StartupFeedbackEffect()
 {
     // TODO: move somewhere that is x11-specific
     if (KWindowSystem::isPlatformX11()) {
-        m_selection = new KSelectionOwner("_KDE_STARTUP_FEEDBACK", xcbConnection(), x11RootWindow(), this);
+        m_selection = new KSelectionOwner("_KDE_STARTUP_FEEDBACK", effects->xcbConnection(), effects->x11RootWindow(), this);
         m_selection->claim(true);
     }
     connect(m_startupInfo, &KStartupInfo::gotNewStartup, this, [](const KStartupInfoId &id, const KStartupInfoData &data) {