diff --git a/src/widgets/graphicsview/qgraph_p.h b/src/widgets/graphicsview/qgraph_p.h
index ce04b16265..ff0daca29a 100644
--- a/src/widgets/graphicsview/qgraph_p.h
+++ b/src/widgets/graphicsview/qgraph_p.h
@@ -56,6 +56,7 @@
 #include <QtCore/QQueue>
 #include <QtCore/QString>
 #include <QtCore/QDebug>
+#include <QtCore/QSet>
 
 #include <functional> // for std::less
 
diff --git a/src/widgets/kernel/qgesture.h b/src/widgets/kernel/qgesture.h
index 5ccf635e2e..a22db41ade 100644
--- a/src/widgets/kernel/qgesture.h
+++ b/src/widgets/kernel/qgesture.h
@@ -42,6 +42,7 @@
 
 #include <QtWidgets/qtwidgetsglobal.h>
 #include <QtCore/qobject.h>
+#include <QtCore/qmap.h>
 #include <QtCore/qlist.h>
 #include <QtCore/qdatetime.h>
 #include <QtCore/qpoint.h>
diff --git a/src/widgets/kernel/qgesturemanager.cpp b/src/widgets/kernel/qgesturemanager.cpp
index b725485948..391018551b 100644
--- a/src/widgets/kernel/qgesturemanager.cpp
+++ b/src/widgets/kernel/qgesturemanager.cpp
@@ -57,6 +57,7 @@
 
 #include "qdebug.h"
 #include <QtCore/QLoggingCategory>
+#include <QtCore/QVarLengthArray>
 
 #ifndef QT_NO_GESTURES
 
diff --git a/src/widgets/util/qcompleter_p.h b/src/widgets/util/qcompleter_p.h
index ad10a4480b..0204ee864d 100644
--- a/src/widgets/util/qcompleter_p.h
+++ b/src/widgets/util/qcompleter_p.h
@@ -57,6 +57,7 @@
 
 #include "QtWidgets/qabstractitemview.h"
 #include "QtCore/qabstractproxymodel.h"
+#include "QtCore/qmap.h"
 #include "qcompleter.h"
 #include "qstyleditemdelegate.h"
 #include "QtGui/qpainter.h"