diff --git a/effects/presentwindows_config.h b/effects/presentwindows_config.h
index 147ceed70e..faae21c500 100644
--- a/effects/presentwindows_config.h
+++ b/effects/presentwindows_config.h
@@ -11,7 +11,9 @@ License. See the file "COPYING" for the exact licensing terms.
 #ifndef KWIN_PRESENTWINDOWS_CONFIG_H
 #define KWIN_PRESENTWINDOWS_CONFIG_H
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 
 class QComboBox;
 
diff --git a/effects/shadow_config.h b/effects/shadow_config.h
index 379ae364ab..4a82cf45b4 100644
--- a/effects/shadow_config.h
+++ b/effects/shadow_config.h
@@ -11,7 +11,9 @@ License. See the file "COPYING" for the exact licensing terms.
 #ifndef KWIN_SHADOW_CONFIG_H
 #define KWIN_SHADOW_CONFIG_H
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 
 class QSpinBox;
 
diff --git a/kcmkwin/kwincompositing/main.h b/kcmkwin/kwincompositing/main.h
index d3e59fa2d1..535a8950de 100644
--- a/kcmkwin/kwincompositing/main.h
+++ b/kcmkwin/kwincompositing/main.h
@@ -12,7 +12,9 @@ License. See the file "COPYING" for the exact licensing terms.
 #ifndef __MAIN_H__
 #define __MAIN_H__
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 
 #include <ksharedconfig.h>
 
diff --git a/kcmkwin/kwindecoration/kwindecoration.h b/kcmkwin/kwindecoration/kwindecoration.h
index 3e0bbc07e0..bd1bf23e5d 100644
--- a/kcmkwin/kwindecoration/kwindecoration.h
+++ b/kcmkwin/kwindecoration/kwindecoration.h
@@ -30,7 +30,9 @@
 #ifndef KWINDECORATION_H
 #define KWINDECORATION_H
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 #include "buttons.h"
 #include <kconfig.h>
 #include <klibloader.h>
diff --git a/kcmkwin/kwineffects/main.h b/kcmkwin/kwineffects/main.h
index 22074051ec..79dd058720 100644
--- a/kcmkwin/kwineffects/main.h
+++ b/kcmkwin/kwineffects/main.h
@@ -12,7 +12,9 @@ License. See the file "COPYING" for the exact licensing terms.
 #ifndef __MAIN_H__
 #define __MAIN_H__
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 
 #include <ksharedconfig.h>
 #include <QHash>
diff --git a/kcmkwin/kwinoptions/main.h b/kcmkwin/kwinoptions/main.h
index cd3213559a..dc6272dc37 100644
--- a/kcmkwin/kwinoptions/main.h
+++ b/kcmkwin/kwinoptions/main.h
@@ -26,7 +26,9 @@
 #define __MAIN_H__
 
 #include <QTabWidget>
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 
 class KConfig;
 class KFocusConfig;
diff --git a/kcmkwin/kwinrules/kcm.h b/kcmkwin/kwinrules/kcm.h
index c263e4dd98..d9f1a36814 100644
--- a/kcmkwin/kwinrules/kcm.h
+++ b/kcmkwin/kwinrules/kcm.h
@@ -20,7 +20,9 @@
 #ifndef __KCM_H__
 #define __KCM_H__
 
+#define KDE3_SUPPORT
 #include <kcmodule.h>
+#undef KDE3_SUPPORT
 #include <kconfig.h>
 
 class KConfig;