diff --git a/src/plugins/coreplugin/coreplugin.cpp b/src/plugins/coreplugin/coreplugin.cpp
index 8941e617321..82356fd5be7 100644
--- a/src/plugins/coreplugin/coreplugin.cpp
+++ b/src/plugins/coreplugin/coreplugin.cpp
@@ -61,15 +61,8 @@ static CorePlugin *m_instance = nullptr;
 const char kWarnCrashReportingSetting[] = "WarnCrashReporting";
 const char kEnvironmentChanges[] = "Core/EnvironmentChanges";
 
-void CorePlugin::setupSystemEnvironment()
-{
-    m_instance->m_startupSystemEnvironment = Environment::systemEnvironment();
-    const EnvironmentItems changes = EnvironmentItem::fromStringList(
-        ICore::settings()->value(kEnvironmentChanges).toStringList());
-    setEnvironmentChanges(changes);
-}
-
 CorePlugin::CorePlugin()
+    : m_startupSystemEnvironment(Environment::systemEnvironment())
 {
     qRegisterMetaType<Id>();
     qRegisterMetaType<Utils::Text::Position>();
@@ -81,7 +74,10 @@ CorePlugin::CorePlugin()
     qRegisterMetaType<Utils::KeyList>();
     qRegisterMetaType<Utils::OldStore>();
     m_instance = this;
-    setupSystemEnvironment();
+
+    const EnvironmentItems changes = EnvironmentItem::fromStringList(
+        ICore::settings()->value(kEnvironmentChanges).toStringList());
+    setEnvironmentChanges(changes);
 }
 
 CorePlugin::~CorePlugin()
@@ -329,11 +325,6 @@ QObject *CorePlugin::remoteCommand(const QStringList & /* options */,
     return res;
 }
 
-Environment CorePlugin::startupSystemEnvironment()
-{
-    return m_instance->m_startupSystemEnvironment;
-}
-
 EnvironmentItems CorePlugin::environmentChanges()
 {
     return m_instance->m_environmentChanges;
diff --git a/src/plugins/coreplugin/coreplugin.h b/src/plugins/coreplugin/coreplugin.h
index f06caa83d7d..987c6d15817 100644
--- a/src/plugins/coreplugin/coreplugin.h
+++ b/src/plugins/coreplugin/coreplugin.h
@@ -50,7 +50,6 @@ public:
                            const QString &workingDirectory,
                            const QStringList &args) override;
 
-    static Utils::Environment startupSystemEnvironment();
     static Utils::EnvironmentItems environmentChanges();
     static void setEnvironmentChanges(const Utils::EnvironmentItems &changes);
     static QString msgCrashpadInformation();
@@ -71,7 +70,6 @@ private slots:
 
 private:
     static void addToPathChooserContextMenu(Utils::PathChooser *pathChooser, QMenu *menu);
-    static void setupSystemEnvironment();
     void checkSettings();
     void warnAboutCrashReporing();
 
@@ -80,7 +78,7 @@ private:
     Locator *m_locator = nullptr;
     std::unique_ptr<SessionManager> m_sessionManager;
     FolderNavigationWidgetFactory *m_folderNavigationWidgetFactory = nullptr;
-    Utils::Environment m_startupSystemEnvironment;
+    const Utils::Environment m_startupSystemEnvironment;
     Utils::EnvironmentItems m_environmentChanges;
 };