diff --git a/src/libs/sqlite/sqlitedatabasebackend.cpp b/src/libs/sqlite/sqlitedatabasebackend.cpp
index e9724cc0870..956a3ee2cdd 100644
--- a/src/libs/sqlite/sqlitedatabasebackend.cpp
+++ b/src/libs/sqlite/sqlitedatabasebackend.cpp
@@ -33,7 +33,6 @@
 #include "sqlitewritestatement.h"
 
 #include <QFileInfo>
-#include <QThread>
 #include <QDebug>
 
 #include "sqlite.h"
diff --git a/src/plugins/android/androidconfigurations.cpp b/src/plugins/android/androidconfigurations.cpp
index 65873a469cf..d5f28d43ea1 100644
--- a/src/plugins/android/androidconfigurations.cpp
+++ b/src/plugins/android/androidconfigurations.cpp
@@ -75,7 +75,6 @@
 #include <QStandardPaths>
 #include <QStringList>
 #include <QTcpSocket>
-#include <QThread>
 
 #include <functional>
 #include <memory>
diff --git a/src/plugins/nim/editor/nimcompletionassistprovider.cpp b/src/plugins/nim/editor/nimcompletionassistprovider.cpp
index f8e6a24042c..b920dbfd254 100644
--- a/src/plugins/nim/editor/nimcompletionassistprovider.cpp
+++ b/src/plugins/nim/editor/nimcompletionassistprovider.cpp
@@ -43,7 +43,6 @@
 #include <QTemporaryFile>
 #include <QTextStream>
 #include <QTextDocument>
-#include <QThread>
 
 using namespace ProjectExplorer;
 using namespace TextEditor;
diff --git a/src/plugins/scxmleditor/plugin_interface/graphicsscene.cpp b/src/plugins/scxmleditor/plugin_interface/graphicsscene.cpp
index 6e941fd8077..52ce0fc9a13 100644
--- a/src/plugins/scxmleditor/plugin_interface/graphicsscene.cpp
+++ b/src/plugins/scxmleditor/plugin_interface/graphicsscene.cpp
@@ -48,7 +48,6 @@
 #include <QClipboard>
 #include <QMenu>
 #include <QMimeData>
-#include <QThread>
 #include <QUndoStack>
 
 using namespace ScxmlEditor::PluginInterface;
diff --git a/src/plugins/valgrind/xmlprotocol/parser.cpp b/src/plugins/valgrind/xmlprotocol/parser.cpp
index df2fe3cd1af..cc552859925 100644
--- a/src/plugins/valgrind/xmlprotocol/parser.cpp
+++ b/src/plugins/valgrind/xmlprotocol/parser.cpp
@@ -38,7 +38,6 @@
 #include <QHash>
 #include <QIODevice>
 #include <QPair>
-#include <QThread>
 #include <QXmlStreamReader>
 
 namespace {