diff --git a/src/filter/filterconverter/filterconverttosieveresultdialog.h b/src/filter/filterconverter/filterconverttosieveresultdialog.h
index 45ea050..dc557bb 100644
--- a/src/filter/filterconverter/filterconverttosieveresultdialog.h
+++ b/src/filter/filterconverter/filterconverttosieveresultdialog.h
@@ -21,7 +21,6 @@
 
 #include <KSyntaxHighlighting/Repository>
 #include <QDialog>
-class QTemporaryFile;
 namespace KPIMTextEdit {
 class PlainTextEditorWidget;
 }
diff --git a/src/filter/kmfilterdialog.h b/src/filter/kmfilterdialog.h
index 888fff8..83db8f9 100644
--- a/src/filter/kmfilterdialog.h
+++ b/src/filter/kmfilterdialog.h
@@ -40,7 +40,6 @@ class KKeySequenceWidget;
 
 class QCheckBox;
 class QLabel;
-class QListWidget;
 class QPushButton;
 class QRadioButton;
 class QPushButton;
diff --git a/src/util/mailutil_p.h b/src/util/mailutil_p.h
index ca966f9..46e809a 100644
--- a/src/util/mailutil_p.h
+++ b/src/util/mailutil_p.h
@@ -44,10 +44,6 @@
 #include <AgentInstance>
 #include <Collection>
 
-namespace Akonadi {
-class Item;
-}
-
 namespace MailCommon {
 /**
  * The Util namespace contains a collection of helper functions use in