diff --git a/src/plugins/qbsprojectmanager/qbsbuildconfiguration.cpp b/src/plugins/qbsprojectmanager/qbsbuildconfiguration.cpp
index 94555e802c8..0df62fc51bb 100644
--- a/src/plugins/qbsprojectmanager/qbsbuildconfiguration.cpp
+++ b/src/plugins/qbsprojectmanager/qbsbuildconfiguration.cpp
@@ -126,7 +126,7 @@ bool QbsBuildConfiguration::fromMap(const QVariantMap &map)
 
     m_configurationName = map.value(configNameKey()).toString();
     if (m_configurationName.isEmpty()) { // pre-4.4 backwards compatibility
-        const QString profileName = QbsManager::instance()->profileForKit(target()->kit());
+        const QString profileName = QbsManager::profileForKit(target()->kit());
         const QString buildVariant = qbsConfiguration()
                 .value(QLatin1String(Constants::QBS_CONFIG_VARIANT_KEY)).toString();
         m_configurationName = profileName + QLatin1Char('-') + buildVariant;
@@ -369,7 +369,7 @@ QString QbsBuildConfiguration::equivalentCommandLine(const BuildStep *buildStep)
         Utils::QtcProcess::addArgs(&commandLine, QStringList({"--jobs",
                                                               QString::number(jobCount)}));
     }
-    const QString profileName = QbsManager::instance()->profileForKit(buildStep->target()->kit());
+    const QString profileName = QbsManager::profileForKit(buildStep->target()->kit());
     const QString buildVariant = qbsConfiguration()
             .value(QLatin1String(Constants::QBS_CONFIG_VARIANT_KEY)).toString();
     Utils::QtcProcess::addArg(&commandLine, configurationName());
diff --git a/src/plugins/qbsprojectmanager/qbsprofilessettingspage.cpp b/src/plugins/qbsprojectmanager/qbsprofilessettingspage.cpp
index 56110a3baf8..cce3108d91d 100644
--- a/src/plugins/qbsprojectmanager/qbsprofilessettingspage.cpp
+++ b/src/plugins/qbsprojectmanager/qbsprofilessettingspage.cpp
@@ -167,7 +167,7 @@ void QbsProfilesSettingsWidget::displayCurrentProfile()
     const Core::Id kitId = Core::Id::fromSetting(m_ui.kitsComboBox->currentData());
     const ProjectExplorer::Kit * const kit = ProjectExplorer::KitManager::kit(kitId);
     QTC_ASSERT(kit, return);
-    const QString profileName = QbsManager::instance()->profileForKit(kit);
+    const QString profileName = QbsManager::profileForKit(kit);
     m_ui.profileValueLabel->setText(profileName);
     for (int i = 0; i < m_model.rowCount(); ++i) {
         const QModelIndex profilesIndex = m_model.index(i, 0);
diff --git a/src/plugins/qbsprojectmanager/qbsproject.cpp b/src/plugins/qbsprojectmanager/qbsproject.cpp
index b0df6974cf2..4d11f082a47 100644
--- a/src/plugins/qbsprojectmanager/qbsproject.cpp
+++ b/src/plugins/qbsprojectmanager/qbsproject.cpp
@@ -687,7 +687,7 @@ void QbsProject::parse(const QVariantMap &config, const Environment &env, const
 
     registerQbsProjectParser(new QbsProjectParser(this, m_qbsUpdateFutureInterface));
 
-    QbsManager::instance()->updateProfileIfNecessary(activeTarget()->kit());
+    QbsManager::updateProfileIfNecessary(activeTarget()->kit());
     m_qbsProjectParser->parse(config, env, dir, configName);
     emitParsingStarted();
 }
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp b/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
index ad99c81bf1f..bb9bf44ce72 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanager.cpp
@@ -69,9 +69,9 @@ PropertyProvider::~PropertyProvider()
 
 namespace Internal {
 
-qbs::Settings *QbsManager::m_settings = nullptr;
-Internal::QbsLogSink *QbsManager::m_logSink = nullptr;
-QbsManager *QbsManager::m_instance = nullptr;
+static qbs::Settings *m_settings = nullptr;
+static Internal::QbsLogSink *m_logSink = nullptr;
+static QbsManager *m_instance = nullptr;
 
 QbsManager::QbsManager() : m_defaultPropertyProvider(new DefaultPropertyProvider)
 {
@@ -130,8 +130,8 @@ void QbsManager::updateProfileIfNecessary(const ProjectExplorer::Kit *kit)
 {
     // kit in list <=> profile update is necessary
     // Note that the const_cast is safe, as we do not call any non-const methods on the object.
-    if (m_kitsToBeSetupForQbs.removeOne(const_cast<ProjectExplorer::Kit *>(kit)))
-        addProfileFromKit(kit);
+    if (m_instance->m_kitsToBeSetupForQbs.removeOne(const_cast<ProjectExplorer::Kit *>(kit)))
+        m_instance->addProfileFromKit(kit);
 }
 
 void QbsManager::updateAllProfiles()
@@ -150,6 +150,11 @@ qbs::Settings *QbsManager::settings()
     return m_settings;
 }
 
+QbsLogSink *QbsManager::logSink()
+{
+    return m_logSink;
+}
+
 void QbsManager::addProfile(const QString &name, const QVariantMap &data)
 {
     qbs::Profile profile(name, settings());
diff --git a/src/plugins/qbsprojectmanager/qbsprojectmanager.h b/src/plugins/qbsprojectmanager/qbsprojectmanager.h
index ec0ab7a6aba..7dae3ed297e 100644
--- a/src/plugins/qbsprojectmanager/qbsprojectmanager.h
+++ b/src/plugins/qbsprojectmanager/qbsprojectmanager.h
@@ -33,10 +33,7 @@
 
 namespace qbs { class Settings; }
 
-namespace ProjectExplorer {
-class Kit;
-class Project;
-} // namespace ProjectExplorer
+namespace ProjectExplorer { class Kit; }
 
 namespace QbsProjectManager {
 namespace Internal {
@@ -53,15 +50,13 @@ public:
 
     // QBS profiles management:
     static QString profileForKit(const ProjectExplorer::Kit *k);
-    void setProfileForKit(const QString &name, const ProjectExplorer::Kit *k);
-
-    void updateProfileIfNecessary(const ProjectExplorer::Kit *kit);
+    static void updateProfileIfNecessary(const ProjectExplorer::Kit *kit);
 
     static qbs::Settings *settings();
-    static Internal::QbsLogSink *logSink() { return m_logSink; }
-    static QbsManager *instance() { return m_instance; }
+    static Internal::QbsLogSink *logSink();
 
 private:
+    void setProfileForKit(const QString &name, const ProjectExplorer::Kit *k);
     void addProfile(const QString &name, const QVariantMap &data);
     void addQtProfileFromKit(const QString &profileName, const ProjectExplorer::Kit *k);
     void addProfileFromKit(const ProjectExplorer::Kit *k);
@@ -70,12 +65,8 @@ private:
     void handleKitUpdate(ProjectExplorer::Kit *kit);
     void handleKitRemoval(ProjectExplorer::Kit *kit);
 
-    static QbsLogSink *m_logSink;
-    static qbs::Settings *m_settings;
-
     DefaultPropertyProvider *m_defaultPropertyProvider;
     QList<ProjectExplorer::Kit *> m_kitsToBeSetupForQbs;
-    static QbsManager *m_instance;
 };
 
 } // namespace Internal