diff --git a/activation.cpp b/activation.cpp
index 67bb89368d..b43f6ab14c 100644
--- a/activation.cpp
+++ b/activation.cpp
@@ -41,7 +41,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "atoms.h"
 #include "group.h"
 #include "rules.h"
-#include "effects.h"
 #include <QX11Info>
 
 namespace KWin
diff --git a/bridge.cpp b/bridge.cpp
index 5372d5a33d..06dde5588f 100644
--- a/bridge.cpp
+++ b/bridge.cpp
@@ -22,7 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "client.h"
 #include "options.h"
-#include "effects.h"
 
 #include <kconfiggroup.h>
 
diff --git a/client.cpp b/client.cpp
index d4b9dc7e5a..f6d964dd36 100644
--- a/client.cpp
+++ b/client.cpp
@@ -44,7 +44,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "notifications.h"
 #include "rules.h"
 #include "scene.h"
-#include "effects.h"
 #include "deleted.h"
 #include "paintredirector.h"
 #include "tabbox.h"
diff --git a/deleted.cpp b/deleted.cpp
index a59c7cd5df..e6130ffa20 100644
--- a/deleted.cpp
+++ b/deleted.cpp
@@ -22,7 +22,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "workspace.h"
 #include "client.h"
-#include "effects.h"
 
 namespace KWin
 {