diff --git a/src/plugins/coreplugin/messagemanager.cpp b/src/plugins/coreplugin/messagemanager.cpp
index 734a11399eb..f29abc0a460 100644
--- a/src/plugins/coreplugin/messagemanager.cpp
+++ b/src/plugins/coreplugin/messagemanager.cpp
@@ -24,6 +24,7 @@
 ****************************************************************************/
 
 #include "messagemanager.h"
+
 #include "messageoutputwindow.h"
 
 #include <extensionsystem/pluginmanager.h>
@@ -31,7 +32,7 @@
 using namespace Core;
 
 static MessageManager *m_instance = nullptr;
-Internal::MessageOutputWindow *m_messageOutputWindow = nullptr;
+static Internal::MessageOutputWindow *m_messageOutputWindow = nullptr;
 
 MessageManager *MessageManager::instance()
 {
@@ -78,6 +79,6 @@ void MessageManager::write(const QString &text, PrintToOutputPaneFlags flags)
     QTC_ASSERT(m_messageOutputWindow, return);
 
     showOutputPane(flags);
-    m_messageOutputWindow->append(text + QLatin1Char('\n'));
+    m_messageOutputWindow->append(text + '\n');
 }
 
diff --git a/src/plugins/coreplugin/messagemanager.h b/src/plugins/coreplugin/messagemanager.h
index d530db8603f..9d8e07d2b45 100644
--- a/src/plugins/coreplugin/messagemanager.h
+++ b/src/plugins/coreplugin/messagemanager.h
@@ -27,8 +27,8 @@
 
 #include "core_global.h"
 #include "ioutputpane.h"
-#include <QMetaType>
 
+#include <QMetaType>
 #include <QObject>
 
 namespace Core {