diff --git a/ktorrent/dialogs/fileselectdlg.cpp b/ktorrent/dialogs/fileselectdlg.cpp
--- a/ktorrent/dialogs/fileselectdlg.cpp
+++ b/ktorrent/dialogs/fileselectdlg.cpp
@@ -20,6 +20,7 @@
 
 #include "fileselectdlg.h"
 
+#include <QButtonGroup>
 #include <QMenu>
 #include <QPushButton>
 #include <QTextCodec>
diff --git a/ktorrent/groups/groupview.cpp b/ktorrent/groups/groupview.cpp
--- a/ktorrent/groups/groupview.cpp
+++ b/ktorrent/groups/groupview.cpp
@@ -23,6 +23,7 @@
 #include <QAction>
 #include <QDragEnterEvent>
 #include <QDropEvent>
+#include <QHeaderView>
 #include <QInputDialog>
 #include <QMenu>
 #include <QTreeWidgetItemIterator>
diff --git a/plugins/search/searchprefpage.cpp b/plugins/search/searchprefpage.cpp
--- a/plugins/search/searchprefpage.cpp
+++ b/plugins/search/searchprefpage.cpp
@@ -21,6 +21,7 @@
 
 #include "searchprefpage.h"
 
+#include <QButtonGroup>
 #include <QCheckBox>
 #include <QFile>
 #include <QInputDialog>