diff --git a/modules/gui/pymod/data_viewer_proxy.hh b/modules/gui/pymod/data_viewer_proxy.hh
index de1cd16fd74831cc371033451c3c93724c244386..49e764b65e15271db14331f2772c2f64969ead1c 100644
--- a/modules/gui/pymod/data_viewer_proxy.hh
+++ b/modules/gui/pymod/data_viewer_proxy.hh
@@ -27,6 +27,8 @@
 #ifndef IMG_GUI_DATA_VIEWER_PROXY_H
 #define IMG_GUI_DATA_VIEWER_PROXY_H
 
+#include "sip_handler.hh"
+
 #include <boost/shared_ptr.hpp>
 #include <QPointer>
 
@@ -39,8 +41,6 @@
 #include <ost/gui/data_viewer/data_viewer.hh>
 #include <ost/gui/module_config.hh>
 
-#include "sip_handler.hh"
-
 class QWidget;
 class QString;