diff --git a/src/corelib/io/qstandardpaths_unix.cpp b/src/corelib/io/qstandardpaths_unix.cpp
index 62c846738e2..54997517517 100644
--- a/src/corelib/io/qstandardpaths_unix.cpp
+++ b/src/corelib/io/qstandardpaths_unix.cpp
@@ -42,6 +42,7 @@
 #include "qstandardpaths.h"
 #include <qdir.h>
 #include <qfile.h>
+#include <qhash.h>
 #include <qtextstream.h>
 #include <qcoreapplication.h>
 #include <private/qfilesystemengine_p.h>
diff --git a/src/corelib/json/qjsonarray.cpp b/src/corelib/json/qjsonarray.cpp
index 0eb1974147b..6ffb9639f7b 100644
--- a/src/corelib/json/qjsonarray.cpp
+++ b/src/corelib/json/qjsonarray.cpp
@@ -44,6 +44,7 @@
 #include <qjsonarray.h>
 #include <qjsonvalue.h>
 #include <qstringlist.h>
+#include <qvariant.h>
 #include <qdebug.h>
 
 #include "qjsonwriter_p.h"
diff --git a/src/corelib/json/qjsondocument.cpp b/src/corelib/json/qjsondocument.cpp
index 8a7fa760ae9..c2204bf6960 100644
--- a/src/corelib/json/qjsondocument.cpp
+++ b/src/corelib/json/qjsondocument.cpp
@@ -44,6 +44,7 @@
 #include <qjsonvalue.h>
 #include <qjsonarray.h>
 #include <qstringlist.h>
+#include <qvariant.h>
 #include <qdebug.h>
 #include "qjsonwriter_p.h"
 #include "qjsonparser_p.h"
diff --git a/src/corelib/json/qjsonobject.cpp b/src/corelib/json/qjsonobject.cpp
index b7af8c22cf0..289a752c8b6 100644
--- a/src/corelib/json/qjsonobject.cpp
+++ b/src/corelib/json/qjsonobject.cpp
@@ -44,6 +44,7 @@
 #include <qjsonarray.h>
 #include <qstringlist.h>
 #include <qdebug.h>
+#include <qvariant.h>
 #include "qjson_p.h"
 #include "qjsonwriter_p.h"
 
diff --git a/src/corelib/tools/qlocale.h b/src/corelib/tools/qlocale.h
index c029f627b2f..2ecd9341009 100644
--- a/src/corelib/tools/qlocale.h
+++ b/src/corelib/tools/qlocale.h
@@ -42,7 +42,6 @@
 #ifndef QLOCALE_H
 #define QLOCALE_H
 
-#include <QtCore/qvariant.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qobjectdefs.h>
 
diff --git a/src/corelib/tools/qlocale_p.h b/src/corelib/tools/qlocale_p.h
index c6902ca2060..ad7c9706c4a 100644
--- a/src/corelib/tools/qlocale_p.h
+++ b/src/corelib/tools/qlocale_p.h
@@ -55,7 +55,7 @@
 
 #include "QtCore/qstring.h"
 #include "QtCore/qvarlengtharray.h"
-#include "QtCore/qmetatype.h"
+#include "QtCore/qvariant.h"
 
 #include "qlocale.h"