diff --git a/src/calibre/gui2/progress_indicator/QProgressIndicator.cpp b/src/calibre/gui2/progress_indicator/QProgressIndicator.cpp
index 90ff986447..2ac4a23a50 100644
--- a/src/calibre/gui2/progress_indicator/QProgressIndicator.cpp
+++ b/src/calibre/gui2/progress_indicator/QProgressIndicator.cpp
@@ -1,12 +1,12 @@
 #include "QProgressIndicator.h"
 
 #include <QPainter>
-#include <QStylePlugin>
+#include <QtWidgets/QStylePlugin>
 #include <QPluginLoader>
-#include <QStyle>
-#include <QApplication>
+#include <QtWidgets/QStyle>
+#include <QtWidgets/QApplication>
 #include <QDebug>
-#include <QProxyStyle>
+#include <QtWidgets/QProxyStyle>
 
 QProgressIndicator::QProgressIndicator(QWidget* parent, int size)
         : QWidget(parent),
diff --git a/src/calibre/gui2/progress_indicator/QProgressIndicator.h b/src/calibre/gui2/progress_indicator/QProgressIndicator.h
index 359d84e22a..33a5a82d87 100644
--- a/src/calibre/gui2/progress_indicator/QProgressIndicator.h
+++ b/src/calibre/gui2/progress_indicator/QProgressIndicator.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include <QWidget>
+#include <QtWidgets/QWidget>
 #include <QColor>
 
 /*! 
diff --git a/src/calibre/gui2/progress_indicator/QProgressIndicator.sip b/src/calibre/gui2/progress_indicator/QProgressIndicator.sip
index a4caa35020..a659891d03 100644
--- a/src/calibre/gui2/progress_indicator/QProgressIndicator.sip
+++ b/src/calibre/gui2/progress_indicator/QProgressIndicator.sip
@@ -3,8 +3,7 @@
 
 %Module(name=progress_indicator, version=1)
 
-%Import QtCore/QtCoremod.sip
-%Import QtGui/QtGuimod.sip
+%Import QtWidgets/QtWidgetsmod.sip
 
 %ModuleHeaderCode
 int load_style(QString &path, QString &name);