diff --git a/qelectrotech/sources/ui/importelementdialog.h b/qelectrotech/sources/ui/importelementdialog.h
index d5b93bc..a0b2403 100644
--- a/qelectrotech/sources/ui/importelementdialog.h
+++ b/qelectrotech/sources/ui/importelementdialog.h
@@ -19,6 +19,7 @@
 #define IMPORTELEMENTDIALOG_H
 
 #include <QDialog>
+#include <QButtonGroup>
 #include "qet.h"
 
 namespace Ui {