diff --git a/code/ryzom/tools/client/client_config_qt/general_settings_widget.h b/code/ryzom/tools/client/client_config_qt/general_settings_widget.h
index 8cd400b3b..0e72e988a 100644
--- a/code/ryzom/tools/client/client_config_qt/general_settings_widget.h
+++ b/code/ryzom/tools/client/client_config_qt/general_settings_widget.h
@@ -20,6 +20,8 @@
 #include "ui_general_settings_widget.h"
 #include "widget_base.h"
 
+#include "nel/misc/types_nl.h"
+
 class QTranslator;
 
 /**
diff --git a/code/ryzom/tools/client/ryzom_installer/src/downloader.h b/code/ryzom/tools/client/ryzom_installer/src/downloader.h
index 585e4d59a..af8c18c9e 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/downloader.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/downloader.h
@@ -17,6 +17,9 @@
 #ifndef DOWNLOADER_H
 #define DOWNLOADER_H
 
+#include <QtCore/QtCore>
+#include <QtNetwork/QtNetwork>
+
 class IOperationProgressListener;
 
 /**
diff --git a/code/ryzom/tools/client/ryzom_installer/src/operation.h b/code/ryzom/tools/client/ryzom_installer/src/operation.h
index 5cf03f3e1..2db0ce559 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/operation.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/operation.h
@@ -17,6 +17,8 @@
 #ifndef OPERATION_H
 #define OPERATION_H
 
+#include <QtCore/QtCore>
+
 class IOperationProgressListener
 {
 public:
diff --git a/code/ryzom/tools/client/ryzom_installer/src/uninstalldialog.h b/code/ryzom/tools/client/ryzom_installer/src/uninstalldialog.h
index 0c818ebc1..a880db33b 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/uninstalldialog.h
+++ b/code/ryzom/tools/client/ryzom_installer/src/uninstalldialog.h
@@ -20,6 +20,8 @@
 #include "ui_uninstalldialog.h"
 #include "operation.h"
 
+class QStandardItem;
+
 /**
  * Wizard displayed when uninstalling components from Add/Remove Program under Windows
  * or when user clicks on Uninstall in main menu.