diff --git a/qhexedit.cpp b/qhexedit.cpp
--- a/qhexedit.cpp
+++ b/qhexedit.cpp
@@ -1,7 +1,7 @@
 #include <QtGui>
 
 #include "qhexedit.h"
-
+#include <QScrollBar>
 
 QHexEdit::QHexEdit(QWidget *parent) : QScrollArea(parent)
 {